http://www.physicsbook.gatech.edu/api.php?action=feedcontributions&feedformat=atom&user=Ysm1152 2026-05-12T05:04:55Z User contributions MediaWiki 1.42.7 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=5286 2015-12-01T01:20:10Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot; While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. He was trying to find an answer to the question posed by Maxwell as to whether the resistance of a coil excited by a current was affected by the presence of a magnet. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> [[File:hall.gif|400px|thumb|right|Hall Effect]]<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/hall.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=5273 2015-12-01T01:13:26Z

<p>Ysm1152: /* Personal Background */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot; While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. He was trying to find an answer to the question posed by Maxwell as to whether the resistance of a coil excited by a current was affected by the presence of a magnet when he observed this effect. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> [[File:hall.gif|400px|thumb|right|Hall Effect]]<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/hall.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4155 2015-11-30T03:54:36Z

<p>Ysm1152: /* Personal Background */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> [[File:hall.gif|400px|thumb|right|Hall Effect]]<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/hall.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4150 2015-11-30T03:51:32Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> [[File:hall.gif|400px|thumb|right|Hall Effect]]<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/hall.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4147 2015-11-30T03:50:48Z

<p>Ysm1152: /* Scientific Contribution */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> [[File:hall.gif|400px|thumb|right|Hall Effect]]<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=File:Hall.gif&diff=4145 2015-11-30T03:49:26Z

<p>Ysm1152: </p> <hr /> <div></div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4144 2015-11-30T03:48:45Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> [[File:hall.gif|200px|thumb|right|Hall Effect]]<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4139 2015-11-30T03:42:38Z

<p>Ysm1152: /* Industrial Contribution */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4137 2015-11-30T03:42:09Z

<p>Ysm1152: /* References */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> <br /> <br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> ==References==<br /> <br /> http://www.britannica.com/science/Hall-effect#ref273169<br /> <br /> http://www.nndb.com/people/130/000099830/<br /> <br /> https://nitum.wordpress.com/2012/09/28/biography-of-edwin-herbert-hall/<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4135 2015-11-30T03:39:45Z

<p>Ysm1152: /* External links */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> <br /> <br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> http://farside.ph.utexas.edu/teaching/302l/lectures/node74.html<br /> <br /> ==References==<br /> <br /> <br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4133 2015-11-30T03:37:36Z

<p>Ysm1152: /* Further reading */</p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> <br /> <br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> <br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4132 2015-11-30T03:36:40Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> <br /> <br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> http://www.electronics-tutorials.ws/electromagnetism/hall-effect.html<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> <br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4129 2015-11-30T03:34:52Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> <br /> <br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938<br /> http://www.nasonline.org/publications/biographical-memoirs/memoir-pdfs/hall-edwin.pdf<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4123 2015-11-30T03:31:50Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|180px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|180px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> <br /> <br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Bridgman, P. W. Biographical Memoir of Edwin Herbert Hall, 1855-1938,. Print.<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4113 2015-11-30T03:24:29Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|200px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|200px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=File:Hall_sensor.gif&diff=4111 2015-11-30T03:24:06Z

<p>Ysm1152: Ysm1152 uploaded a new version of &amp;quot;File:Hall sensor.gif&amp;quot;</p> <hr /> <div></div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=File:Hall_sensor.gif&diff=4109 2015-11-30T03:22:56Z

<p>Ysm1152: </p> <hr /> <div></div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4101 2015-11-30T03:19:06Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:hall sensor.jpg|200px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.gif|200px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=File:Hall_sensor.jpg&diff=4099 2015-11-30T03:17:48Z

<p>Ysm1152: </p> <hr /> <div></div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4098 2015-11-30T03:17:05Z

<p>Ysm1152: </p> <hr /> <div>[[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> ==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> [[File:sensor.jpg|200px|thumb|right|Hall Sensor]]<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> [[File:Hall_sensor.jpg|200px|thumb|right|A wheel containing two magnets passing by a Hall effect sensor]]<br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4095 2015-11-30T03:13:11Z

<p>Ysm1152: </p> <hr /> <div>==Personal Background==<br /> <br /> [[File:Edwin Hall.jpg|200px|thumb|right|Edwin H. Hall]]<br /> <br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=File:Edwin_Hall.jpg&diff=4094 2015-11-30T03:12:27Z

<p>Ysm1152: </p> <hr /> <div></div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4092 2015-11-30T03:09:49Z

<p>Ysm1152: </p> <hr /> <div>==Personal Background==<br /> <br /> <br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=4087 2015-11-30T03:00:28Z

<p>Ysm1152: </p> <hr /> <div>==Personal Background==<br /> <br /> Edwin Herbert Hall was born in Great Falls, ME on November 7, 1855 to Joshua Emergy Hall and Lucy Ann Hilborn Hall. He got his primary education at the local district school and prepared for college by attending &quot;Gorhma Seminary&quot; for two years. Before Hall was 16, he got into Bowdoin College in Brunswick, Maine and graduated as valedictorian of his class in 1875 with a Bachelor of Arts degree. After graduation, he served as principal of Gould's Academy in Bethel, Maine from 1875-1876,and he served as principal of Brunswick High School in Brunswick, Maine from 1876-1877. <br /> After two years of teaching, he decided to further study physics, and in the fall of 1877, he entered Johns Hopkins University as a graduate student in physics. He wrote, &quot;I should perhaps have studied law, if I had not felt myself unfitted to advocate a cause in which I did not believe. I turned to science, after two years of school teaching, because it was progressive and satisfied my standards of intellectual and moral integrity, not because I had any passionate love of it or felt myself especially gifted for scientific undertakings.&quot;While working under Henry Augustus Rowland, he discovered the Hall Effect in 1879. In 1895, he became a physics professor at Harvard and worked until his retirement in 1921.He died on November 20, 1938.<br /> <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> When a magnetic field is applied to a conductor or a semiconductor, electromotive force (EMF) is created perpendicular to the direction of the current and the magnetic field. This phenomenon is related to the moving charge in the current. The magnetic field that is perpendicular to the current-carrying wire makes the moving charge go to one side due to the Lorentz Force.<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> A device that changes its output voltage depending on the intensity of the magnetic field. It is based on the Hall Effect.<br /> <br /> ====How does it work?====<br /> <br /> Even if the current runs in the same direction, depending on the sign of the moving charges, the direction of the created electric field can vary. Also, the intensity of the electric field changes in response to the density of the moving charges. Using these phenomena, the intensity of the current-carrying moving charge in a solid can be measured, and in a semiconductor, the free electron can be identified<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> Sensing the continuous current<br /> Sensing the alternating current<br /> Measuring the intensity of the magnetic field <br /> Detecting the polarity of the current<br /> Sensing temperature by detecting the intensity of the magnetic field in the Ferrite-Magnet<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=3062 2015-11-29T06:33:50Z

<p>Ysm1152: </p> <hr /> <div>==Personal Background==<br /> <br /> This topics focuses on energy work of a system but it can only deal with a large scale response to heat in a system. '''Thermodynamics''' is the study of the work, heat and energy of a system. The smaller scale gas interactions can explained using the kinetic theory of gases. There are three fundamental laws that go along with the topic of thermodynamics. They are the zeroth law, the first law, and the second law. These laws help us understand predict the the operation of the physical system. In order to understand the laws, you must first understand thermal equilibrium. [[Thermal equilibrium]] is reached when a object that is at a higher temperature is in contact with an object that is at a lower temperature and the first object transfers heat to the latter object until they approach the same temperature and maintain that temperature constantly. It is also important to note that any thermodynamic system in thermal equilibrium possesses internal energy. <br /> <br /> <br /> ==Scientific Contribution==<br /> <br /> ===Hall Effect===<br /> <br /> ==Industrial Contribution==<br /> <br /> ===Hall Effect Sensor===<br /> <br /> ====What is the Hall Effect Sensor?====<br /> <br /> ====How does it work?====<br /> <br /> ====The usage of the Hall Sensor====<br /> <br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Notable Scientists]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Edwin_Hall&diff=2999 2015-11-29T05:02:12Z

<p>Ysm1152: Created page with &quot;==Thermodynamics== This topics focuses on energy work of a system but it can only deal with a large scale response to heat in a system. &#039;&#039;&#039;Thermodynamics&#039;&#039;&#039; is the study of...&quot;</p> <hr /> <div>==Thermodynamics==<br /> <br /> This topics focuses on energy work of a system but it can only deal with a large scale response to heat in a system. '''Thermodynamics''' is the study of the work, heat and energy of a system. The smaller scale gas interactions can explained using the kinetic theory of gases. There are three fundamental laws that go along with the topic of thermodynamics. They are the zeroth law, the first law, and the second law. These laws help us understand predict the the operation of the physical system. In order to understand the laws, you must first understand thermal equilibrium. [[Thermal equilibrium]] is reached when a object that is at a higher temperature is in contact with an object that is at a lower temperature and the first object transfers heat to the latter object until they approach the same temperature and maintain that temperature constantly. It is also important to note that any thermodynamic system in thermal equilibrium possesses internal energy. <br /> <br /> ===Zeroth Law===<br /> <br /> The zeroth law states that if two systems are at thermal equilibrium at the same time as a third system, then all of the systems are at equilibrium with each other. If systems A and C are in thermal equilibrium with B, then system A and C are also in thermal equilibrium with each other. There are underlying ideas of heat that are also important. The most prominent one is that all heat is of the same kind. As long as the systems are at thermal equilibrium, every unit of internal energy that passes from one system to the other is balanced by the same amount of energy passing back. This also applies when the two systems or objects have different atomic masses or material. <br /> <br /> ====A Mathematical Model====<br /> <br /> If A = B and A = C, then B = C<br /> A = B = C<br /> <br /> ====A Computational Model====<br /> <br /> How do we visualize or predict using this topic. Consider embedding some vpython code here [https://trinket.io/glowscript/31d0f9ad9e Teach hands-on with GlowScript]<br /> <br /> ===First Law===<br /> <br /> The first law of thermodynamics defines the internal energy (E) as equal to the difference between heat transfer (Q) ''into'' a system and work (W) ''done by'' the system. Heat removed from a system would be given a negative sign and heat applied to the system would be given a positive sign. Internal energy can be converted into other types of energy because it acts like potential energy. Heat and work, however, cannot be stored or conserved independently because they depend on the process. This allows for many different possible states of a system to exist. There can be a process known as the adiabatic process in which there is no heat transfer. This occurs when a system is full insulated from the outside environment. The implementation of this law also brings about another useful state variable, '''enthalpy'''. <br /> <br /> ====A Mathematical Model====<br /> <br /> E2 - E1 = Q - W<br /> <br /> ==Examples==<br /> <br /> Be sure to show all steps in your solution and include diagrams whenever possible<br /> <br /> ===Simple===<br /> ===Middling===<br /> ===Difficult===<br /> <br /> ==Connectedness==<br /> #How is this topic connected to something that you are interested in?<br /> #How is it connected to your major?<br /> #Is there an interesting industrial application?<br /> <br /> ==History==<br /> <br /> Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.<br /> <br /> == See also ==<br /> <br /> Are there related topics or categories in this wiki resource for the curious reader to explore? How does this topic fit into that context?<br /> <br /> ===Further reading===<br /> <br /> Books, Articles or other print media on this topic<br /> <br /> ===External links===<br /> <br /> Internet resources on this topic<br /> <br /> ==References==<br /> <br /> https://www.grc.nasa.gov/www/k-12/airplane/thermo0.html<br /> http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/thereq.html<br /> <br /> [[Category:Which Category did you place this in?]]</div>

Ysm1152 http://www.physicsbook.gatech.edu/index.php?title=Main_Page&diff=2995 2015-11-29T04:57:16Z

<p>Ysm1152: /* Notable Scientists */</p> <hr /> <div>__NOTOC__<br /> Welcome to the Georgia Tech Wiki for Intro Physics. This resources was created so that students can contribute and curate content to help those with limited or no access to a textbook. When reading this website, please correct any errors you may come across. If you read something that isn't clear, please consider revising it!<br /> <br /> Looking to make a contribution?<br /> #Pick a specific topic from intro physics<br /> #Add that topic, as a link to a new page, under the appropriate category listed below by editing this page.<br /> #Copy and paste the default [[Template]] into your new page and start editing.<br /> <br /> Please remember that this is not a textbook and you are not limited to expressing your ideas with only text and equations. Whenever possible embed: pictures, videos, diagrams, simulations, computational models (e.g. Glowscript), and whatever content you think makes learning physics easier for other students.<br /> <br /> == Source Material ==<br /> All of the content added to this resource must be in the public domain or similar free resource. If you are unsure about a source, contact the original author for permission. That said, there is a surprisingly large amount of introductory physics content scattered across the web. Here is an incomplete list of intro physics resources (please update as needed).<br /> * A physics resource written by experts for an expert audience [https://en.wikipedia.org/wiki/Portal:Physics Physics Portal]<br /> * A wiki book on modern physics [https://en.wikibooks.org/wiki/Modern_Physics Modern Physics Wiki]<br /> * The MIT open courseware for intro physics [http://ocw.mit.edu/resources/res-8-002-a-wikitextbook-for-introductory-mechanics-fall-2009/index.htm MITOCW Wiki]<br /> * An online concept map of intro physics [http://hyperphysics.phy-astr.gsu.edu/hbase/hph.html HyperPhysics]<br /> * Interactive physics simulations [https://phet.colorado.edu/en/simulations/category/physics PhET]<br /> * OpenStax algebra based intro physics textbook [https://openstaxcollege.org/textbooks/college-physics College Physics]<br /> * The Open Source Physics project is a collection of online physics resources [http://www.opensourcephysics.org/ OSP]<br /> * A resource guide compiled by the [http://www.aapt.org/ AAPT] for educators [http://www.compadre.org/ ComPADRE]<br /> <br /> == Organizing Categories ==<br /> These are the broad, overarching categories, that we cover in two semester of introductory physics. You can add subcategories or make a new category as needed. A single topic should direct readers to a page in one of these catagories.<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> ===Interactions===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Kinds of Matter]]<br /> *[[Detecting Interactions]]<br /> *[[Fundamental Interactions]] <br /> *[[System &amp; Surroundings]] <br /> *[[Newton's First Law of Motion]]<br /> *[[Newton's Second Law of Motion]]<br /> *[[Newton's Third Law of Motion]]<br /> *[[Gravitational Force]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Theory===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Einstein's Theory of Special Relativity]]<br /> *[[Quantum Theory]]<br /> <br /> <br /> <br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Notable Scientists===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Albert Einstein]]<br /> *[[Ernest Rutherford]]<br /> *[[Joseph Henry]]<br /> *[[Michael Faraday]]<br /> *[[J.J. Thomson]]<br /> *[[James Maxwell]]<br /> *[[Robert Hooke]]<br /> *[[Marie Curie]]<br /> *[[Carl Friedrich Gauss]]<br /> *[[Nikola Tesla]]<br /> *[[Andre Marie Ampere]]<br /> *[[Sir Isaac Newton]]<br /> *[[J. Robert Oppenheimer]]<br /> *[[Oliver Heaviside]]<br /> *[[Rosalind Franklin]]<br /> *[[Erwin Schrödinger]]<br /> *[[Enrico Fermi]]<br /> *[[Robert J. Van de Graaff]]<br /> *[[Charles de Coulomb]]<br /> *[[Hans Christian Ørsted]]<br /> *[[Philo Farnsworth]]<br /> *[[Niels Bohr]]<br /> *[[Georg Ohm]]<br /> *[[Galileo Galilei]]<br /> *[[Gustav Kirchhoff]]<br /> *[[Max Planck]]<br /> *[[Heinrich Hertz]]<br /> *[[Edwin Hall]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Properties of Matter===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Mass]]<br /> *[[Velocity]]<br /> *[[Density]]<br /> *[[Charge]]<br /> *[[Spin]]<br /> *[[SI Units]]<br /> <br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Contact Interactions===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> * [[Young's Modulus]]<br /> * [[Friction]]<br /> * [[Tension]]<br /> * [[Hooke's Law]]<br /> *[[Centripetal Force and Curving Motion]]<br /> *[[Compression or Normal Force]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Momentum===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> * [[Vectors]]<br /> * [[Kinematics]]<br /> * [[Predicting Change in multiple dimensions]]<br /> * [[Momentum Principle]]<br /> * [[Curving Motion]]<br /> * [[Multi-particle Analysis of Momentum]]<br /> * [[Iterative Prediction]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Angular Momentum===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> * [[The Moments of Inertia]]<br /> * [[Rotation]]<br /> * [[Torque]]<br /> *[[Systems with Zero Torque]]<br /> * [[Right Hand Rule]]<br /> * [[Angular Velocity]]<br /> * [[Predicting a Change in Rotation]]<br /> * [[Conservation of Angular Momentum]]<br /> *[[Rotational Angular Momentum]]<br /> *[[Total Angular Momentum]]<br /> <br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Energy===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Predicting Change]]<br /> *[[Rest Mass Energy]]<br /> *[[Kinetic Energy]]<br /> *[[Potential Energy]]<br /> *[[Work]]<br /> *[[Thermal Energy]]<br /> *[[Conservation of Energy]]<br /> *[[Electric Potential]]<br /> *[[Energy Transfer due to a Temperature Difference]]<br /> *[[Gravitational Potential Energy]]<br /> *[[Point Particle Systems]]<br /> *[[Real Systems]]<br /> *[[Spring Potential Energy]]<br /> *[[Internal Energy]]<br /> *[[Energy Diagrams]]<br /> *[[Translational, Rotational and Vibrational Energy]]<br /> *[[Franck-Hertz Experiment]]<br /> *[[Power]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Collisions===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Collisions]]<br /> *[[Maximally Inelastic Collision]]<br /> *[[Elastic Collisions]]<br /> *[[Inelastic Collisions]]<br /> *[[Head-on Collision of Equal Masses]]<br /> *[[Head-on Collision of Unequal Masses]]<br /> *[[Rutherford Experiment and Atomic Collisions]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Fields===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> * [[Electric Field]] of a<br /> ** [[Point Charge]]<br /> ** [[Electric Dipole]]<br /> ** [[Capacitor]]<br /> ** [[Charged Rod]]<br /> ** [[Charged Ring]]<br /> ** [[Charged Disk]]<br /> ** [[Charged Spherical Shell]]<br /> ** [[Charged Cylinder]]<br /> **[[A Solid Sphere Charged Throughout Its Volume]]<br /> *[[Electric Potential]] <br /> **[[Potential Difference in a Uniform Field]]<br /> **[[Potential Difference of point charge in a non-Uniform Field]]<br /> **[[Sign of Potential Difference]]<br /> *[[Electric Force]]<br /> *[[Polarization]]<br /> *[[Charge Motion in Metals]]<br /> *[[Magnetic Field]]<br /> **[[Right-Hand Rule]]<br /> **[[Direction of Magnetic Field]]<br /> **[[Magnetic Field of a Long Straight Wire]]<br /> **[[Bar Magnet]]<br /> **[[Magnetic Force]]<br /> **[[Hall Effect]]<br /> **[[Lorentz Force]]<br /> **[[Biot-Savart Law]]<br /> **[[Integration Techniques for Magnetic Field]]<br /> **[[Sparks in Air]]<br /> **[[Motional Emf]]<br /> **[[Detecting a Magnetic Field]]<br /> **[[Moving Point Charge]]<br /> **[[Non-Coulomb Electric Field]]<br /> **[[Motors and Generators]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Simple Circuits===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Components]]<br /> *[[Steady State]]<br /> *[[Non Steady State]]<br /> *[[Node Rule]]<br /> *[[Loop Rule]]<br /> *[[Power in a circuit]]<br /> *[[Ammeters,Voltmeters,Ohmmeters]]<br /> *[[Current]]<br /> *[[Ohm's Law]]<br /> *[[RC]]<br /> *[[Circular Loop of Wire]]<br /> *[[RL Circuit]]<br /> *[[LC Circuit]]<br /> *[[Surface Charge Distributions]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Maxwell's Equations===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Gauss's Flux Theorem]]<br /> **[[Electric Fields]]<br /> **[[Magnetic Fields]]<br /> *[[Ampere's Law]]<br /> *[[Faraday's Law]]<br /> **[[Inductance]]<br /> **[[Lenz's Law]]<br /> ***[[Lenz Effect and the Jumping Ring]]<br /> *[[Ampere-Maxwell Law]]<br /> **[[Superconducters]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Radiation===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Producing a Radiative Electric Field]]<br /> *[[Sinusoidal Electromagnetic Radiaton]]<br /> *[[Lenses]]<br /> *[[Energy and Momentum Analysis in Radiation]]<br /> *[[Electromagnetic Propagation]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> <br /> ===Sound===<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> *[[Doppler Effect]]<br /> *[[Nature, Behavior, and Properties of Sound]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> *[[blahb]]<br /> &lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> == Resources ==<br /> * Commonly used wiki commands [https://en.wikipedia.org/wiki/Help:Cheatsheet Wiki Cheatsheet]<br /> * A guide to representing equations in math mode [https://en.wikipedia.org/wiki/Help:Displaying_a_formula Wiki Math Mode]<br /> * A page to keep track of all the physics [[Constants]]<br /> * An overview of [[VPython]]</div>

Ysm1152