Magnetic Field - Revision history

Ephung3: /* =Connectedness */

2017-11-29T19:03:06Z

=Connectedness

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	===Difficult===		===Difficult===

	===Connectedness==		==Connectedness==
	'''1. How is this topic connected to something that you are interested in?'''		'''1. How is this topic connected to something that you are interested in?'''

Ephung3: /* Difficult */

2017-11-29T19:02:49Z

Difficult

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	===Difficult===		===Difficult===

	o==Connectedness==		===Connectedness==
	'''1. How is this topic connected to something that you are interested in?'''		'''1. How is this topic connected to something that you are interested in?'''

Ephung3: /* Connectedness */

2017-11-29T19:01:41Z

Connectedness

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	===Difficult===		===Difficult===

	==Connectedness==		o==Connectedness==
	'''1. How is this topic connected to something that you are interested in?'''		'''1. How is this topic connected to something that you are interested in?'''

	~~This topic~~ interests me most in the ~~sense of using models to visualize complex ideas. The concept of a rotating~~ magnetic ~~field due to a moving particle~~ in a ~~wire is a~~ very ~~hard idea to grasp~~. ~~Being able to depict~~ this ~~using VPython animation or graphical images~~ with ~~directional arrows is key to fully understanding such~~ a ~~phenomenon. In other words~~, ~~something I have a keen interest in is enabling those who are not knowledgeable about a difficult subject to~~ be ~~able~~ to ~~grasp a solid interpretation~~ of ~~what is going on. So relating it to this topic~~, ~~being able to visualize~~ magnetic fields ~~through the diagrams and code provided above is one step closer to enhancing my skills in translating difficult concepts~~.		The concept that interests me most regarding this topic is how interrelated it is with electric charges and current. In high school, the way I was taught magnetic fields was in a way that did not emphasize its connection with electricity at all; instead we were basically taught to memorize right hand rules and just accept that magnetic fields were something that were created with current. These concepts came across as very separate entities. However, after learning more about this topic in this class, I learned why wires with current running through them create a magnetic field, and how measuring the amount of tangential magnetic field can be used to find the amount of enclosed current, among many other applications of magnetic fields.

	'''2. How is it connected to your major?'''		'''2. How is it connected to your major?'''

	As a ~~Mechanical Engineer~~, ~~I have~~ to ~~be able to visualize complicated situations, diagrams, and ideas. If I can't fully understand all~~ the ~~factors going on in a problem~~, ~~then I won't be able to fulfill my ultimate purpose as an engineer: finding solutions to real-world problems~~. ~~Thus~~, ~~being able~~ to ~~communicate and display~~ the ~~complexities~~ of a magnetic ~~field, for example, is key to learning how to become a skillful ME~~.		As a biochemistry major, understanding magnetic fields is definitely not essential to any of the curriculum, but it still has useful applications. For example, some devices that we use in chem lab to identify certain compounds based on the number of specific hydrogens (nuclear magnetic resonance spectroscopy) most certainly uses magnetic fields.

	'''3. Is there an interesting industrial application?'''		'''3. Is there an interesting industrial application?'''

	~~Yes! I actually currently have~~ a co-~~op at Southwire Co. which is the leading copper producer in the world.~~ I ~~work~~ in ~~a plant where we extrude copper wire out and make your everyday cables for applications such as lamps~~, ~~telephone lines, or wiring~~ to ~~your house~~. In ~~the plant~~, ~~there is a lot of machinery that can dangerously be affected if this copper product (major conductor of electric current~~ and ~~can produce large~~ magnetic fields) if it is ~~mishandled~~.		As a pre-med student, I am aware that many scanning technologies involved in scanning our bodies to detect any noticeable health issues also utilize magnetic fields, the most well-known probably being MRI scans to produce detailed images of different structures within the body. In an MRI scan, radio waves and powerful magnetic fields are used to obtain visuals of various organs, and this allows doctors to examine the images to see if there is anything of concern.

	==History==		==History==

Ephung3: /* History */

2017-11-29T18:42:28Z

History

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	However, at the turn of the 19th century, this began to change. In 1819, Professor Hans Christian Oersted at Copenhagen University organized a home experiment consisting of a wire with an electric current and a compass. He discovered here that every time the current was switched on, the compass needle pointed at an angle from the wire. In response to this observation made by Oersted, a French mathematician named Andre-Marie Ampere became the first to explain the relationship between electricity and magnetism. His experiments showed that two wires carrying current would attract each other if the currents flowed in the same direction, but would oppose each other if the currents flowed in the opposite direction. [https://www.magcraft.com/history-of-magnetism-and-electricity] One year later, Jean-Baptiste Biot and Félix Savart ran similar experiments and found for themselves what would become the Biot-Savart Law, a key discovery for predicting the direction of magnetic field and magnetic force in relation to electric charges.		However, at the turn of the 19th century, this began to change. In 1819, Professor Hans Christian Oersted at Copenhagen University organized a home experiment consisting of a wire with an electric current and a compass. He discovered here that every time the current was switched on, the compass needle pointed at an angle from the wire. In response to this observation made by Oersted, a French mathematician named Andre-Marie Ampere became the first to explain the relationship between electricity and magnetism. His experiments showed that two wires carrying current would attract each other if the currents flowed in the same direction, but would oppose each other if the currents flowed in the opposite direction. [https://www.magcraft.com/history-of-magnetism-and-electricity] One year later, Jean-Baptiste Biot and Félix Savart ran similar experiments and found for themselves what would become the Biot-Savart Law, a key discovery for predicting the direction of magnetic field and magnetic force in relation to electric charges.
	~~The work published by Biot and Savart~~

	==See Also==		==See Also==

Ephung3: /* History */

2017-11-29T17:05:47Z

History

← Older revision		Revision as of 13:05, 29 November 2017
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	Although not studied extensively until fairly recent history, people have been aware of the existence of magnetic fields for quite some time. The only source of magnetism that people knew about was in the form of iron-rich ore called lodestones.[https://www-spof.gsfc.nasa.gov/Education/whmfield.html]		Although not studied extensively until fairly recent history, people have been aware of the existence of magnetic fields for quite some time. The only source of magnetism that people knew about was in the form of iron-rich ore called lodestones.[https://www-spof.gsfc.nasa.gov/Education/whmfield.html]

	However, at the turn of the 19th century, this began to change. In 1819, Professor Hans Christian Oersted at Copenhagen University organized a home experiment consisting of a wire with an electric current and a compass. He discovered here that every time the current was switched on, the compass needle pointed at an angle from the wire. IN response to this observation made by Oersted, a French mathematician named Andre-Marie Ampere became the first to explain the relationship between electricity and magnetism. His experiments showed that two wires carrying current would attract each other if the currents flowed in the same direction, but would oppose each other if the currents flowed in the opposite direction. [https://www.magcraft.com/history-of-magnetism-and-electricity] One year later, Jean-Baptiste Biot and Félix Savart ran similar experiments and found for themselves what would become the Biot-Savart Law, a key discovery for predicting the direction of magnetic field and magnetic force in relation to electric charges.		However, at the turn of the 19th century, this began to change. In 1819, Professor Hans Christian Oersted at Copenhagen University organized a home experiment consisting of a wire with an electric current and a compass. He discovered here that every time the current was switched on, the compass needle pointed at an angle from the wire. In response to this observation made by Oersted, a French mathematician named Andre-Marie Ampere became the first to explain the relationship between electricity and magnetism. His experiments showed that two wires carrying current would attract each other if the currents flowed in the same direction, but would oppose each other if the currents flowed in the opposite direction. [https://www.magcraft.com/history-of-magnetism-and-electricity] One year later, Jean-Baptiste Biot and Félix Savart ran similar experiments and found for themselves what would become the Biot-Savart Law, a key discovery for predicting the direction of magnetic field and magnetic force in relation to electric charges.
			The work published by Biot and Savart

	==See Also==		==See Also==

Ephung3: /* Simple */

2017-11-29T17:03:51Z

Simple

← Older revision		Revision as of 13:03, 29 November 2017
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	Using the right hand rule, we get the answer to be C.		Using the right hand rule, we get the answer to be C.

	'''2.''' An electron is located at (0,5,3.5) and is traveling with a velocity of (-5,2,-8) m/s. There is also a bar magnet with its north/south dipoles oriented perpendicular to the y-axis located at (0,-10,0). The north dipole faces -x, while the south dipole faces +x, and the magnetic dipole moment is equal to 0.9 Tm^2. What is the magnetic field at the origin in vector notation?

	===Middling===		===Middling===

Ephung3: /* History */

2017-11-26T06:49:43Z

History

← Older revision		Revision as of 02:49, 26 November 2017
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	==History==		==History==

	In 1819, Professor Hans Christian Oersted at Copenhagen University organized a home experiment consisting of a wire with an electric current and a compass. He discovered here that every time the current was switched on, the compass needle pointed at an angle from the wire. At the ~~time~~, ~~he could never figure out why that was~~ but ~~one~~ year later, Jean-Baptiste Biot and Félix Savart ran similar experiments and found for themselves what would become the Biot-Savart Law, a key discovery for predicting the direction of magnetic field and magnetic force.		Although not studied extensively until fairly recent history, people have been aware of the existence of magnetic fields for quite some time. The only source of magnetism that people knew about was in the form of iron-rich ore called lodestones.[https://www-spof.gsfc.nasa.gov/Education/whmfield.html]

			However, at the turn of the 19th century, this began to change. In 1819, Professor Hans Christian Oersted at Copenhagen University organized a home experiment consisting of a wire with an electric current and a compass. He discovered here that every time the current was switched on, the compass needle pointed at an angle from the wire. IN response to this observation made by Oersted, a French mathematician named Andre-Marie Ampere became the first to explain the relationship between electricity and magnetism. His experiments showed that two wires carrying current would attract each other if the currents flowed in the same direction, but would oppose each other if the currents flowed in the opposite direction. [https://www.magcraft.com/history-of-magnetism-and-electricity] One year later, Jean-Baptiste Biot and Félix Savart ran similar experiments and found for themselves what would become the Biot-Savart Law, a key discovery for predicting the direction of magnetic field and magnetic force in relation to electric charges.

	==See Also==		==See Also==

Ephung3: /* Examples */

2017-11-24T23:19:37Z

Examples

← Older revision		Revision as of 19:19, 24 November 2017
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	Using the right hand rule, we get the answer to be C.		Using the right hand rule, we get the answer to be C.

			'''2.''' An electron is located at (0,5,3.5) and is traveling with a velocity of (-5,2,-8) m/s. There is also a bar magnet with its north/south dipoles oriented perpendicular to the y-axis located at (0,-10,0). The north dipole faces -x, while the south dipole faces +x, and the magnetic dipole moment is equal to 0.9 Tm^2. What is the magnetic field at the origin in vector notation?

	===Middling===		===Middling===
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	===Difficult===		===Difficult===
	'''1c.''' An electron is located at (0,5,3.5) and is traveling with a velocity of (-5,2,-8) m/s. There is also a bar magnet with its north/south dipoles oriented perpendicular to the y-axis located at (0,-10,0). The north dipole faces -x, while the south dipole faces +x, and the magnetic dipole moment is equal to 0.9 Tm^2. What is the magnetic field at the origin in vector notation?

	==Connectedness==		==Connectedness==

Ephung3: /* Difficult */

2017-11-24T23:18:02Z

Difficult

← Older revision		Revision as of 19:18, 24 November 2017
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	===Difficult===		===Difficult===
	'''1c.'''An electron is located at (0,5,3.5) and is traveling with a velocity of (-5,2,-8) m/s. There is also a bar magnet with its north/south dipoles oriented perpendicular to the y-axis located at (0,-10,0). The north dipole faces -x, while the south dipole faces +x, and the magnetic dipole moment is equal to 0.9 Tm^2. What is the magnetic field at the origin in vector notation?		'''1c.''' An electron is located at (0,5,3.5) and is traveling with a velocity of (-5,2,-8) m/s. There is also a bar magnet with its north/south dipoles oriented perpendicular to the y-axis located at (0,-10,0). The north dipole faces -x, while the south dipole faces +x, and the magnetic dipole moment is equal to 0.9 Tm^2. What is the magnetic field at the origin in vector notation?

	==Connectedness==		==Connectedness==

Ephung3: /* Examples */

2017-11-24T23:17:30Z

Examples

← Older revision		Revision as of 19:17, 24 November 2017
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	[[File:example12.jpg]]		[[File:example12.jpg]]

			===Difficult===
			'''1c.'''An electron is located at (0,5,3.5) and is traveling with a velocity of (-5,2,-8) m/s. There is also a bar magnet with its north/south dipoles oriented perpendicular to the y-axis located at (0,-10,0). The north dipole faces -x, while the south dipole faces +x, and the magnetic dipole moment is equal to 0.9 Tm^2. What is the magnetic field at the origin in vector notation?

	==Connectedness==		==Connectedness==