Electric Potential Difference - Revision history

Sydney at 21:32, 14 October 2019

2019-10-14T21:32:15Z

← Older revision		Revision as of 17:32, 14 October 2019
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	<math>\sum_{k=1}^n V_k = 0</math>		<math>\sum_{k=1}^n V_k = 0</math>

			==Examples==

	~~'''Example:'''~~		===Simple===

	[[File: 9.png]]		[[File: 9.png]]


	'''Question'''		'''Question'''
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	In the figure above, the total voltage around loop 1 should sum to zero, as does the total voltage in loop 2. Also, the loop which consists of the outer part of the circuit (the path ABCD) should also sum to zero, as shown by Kirchoff's Voltage Law.		In the figure above, the total voltage around loop 1 should sum to zero, as does the total voltage in loop 2. Also, the loop which consists of the outer part of the circuit (the path ABCD) should also sum to zero, as shown by Kirchoff's Voltage Law.

	~~==Examples==~~

	~~===Simple===~~

	~~'''Question'''~~

Sydney: /* The Main Idea */

2019-10-03T12:46:58Z

The Main Idea

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 Say you have two points "A" and "B" in space. The potential difference is defined as the difference in electric potential between those two points. Electric potential is electric potential energy per unit charge, measured in [https://en.wikipedia.org/wiki/Joule joules] per [https://en.wikipedia.org/wiki/Coulomb coulomb] (J/C), otherwise known as volts.
 '''Circuits'''
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 In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],the potential difference supplied by the battery is the same potential difference as that across each of the components in the circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.
 '''Kirchoff's Voltage Law'''

Sydney: /* A Computational Model */

2019-09-26T21:38:27Z

A Computational Model

← Older revision		Revision as of 17:38, 26 September 2019
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	===A Computational Model===		===A Computational Model===
	[https://phet.colorado.edu/sims/html/john-travoltage/latest/john-travoltage_en.html John Travoltage] is a model for voltage using his body as the circuit.		[https://phet.colorado.edu/sims/html/john-travoltage/latest/john-travoltage_en.html John Travoltage] is a model for voltage using his body as the circuit.
	~~*~~Applications~~*~~		'''Applications'''

	~~*~~Circuits~~*~~		'''Circuits'''

	Potential difference is typically used in describing the voltage dropped across some sort of electrical device, such as a [https://en.wikipedia.org/wiki/Resistor resistor]. The voltage drop across the device is the difference between measurements at each terminal of the device with respect to a common reference point. The voltage drop is the difference between the two readings. Two points in an electric circuit that are connected by an ideal conductor without resistance and not within a changing magnetic field have a voltage of zero. Any two points with the same potential may be connected by a conductor and no current will flow between them.		Potential difference is typically used in describing the voltage dropped across some sort of electrical device, such as a [https://en.wikipedia.org/wiki/Resistor resistor]. The voltage drop across the device is the difference between measurements at each terminal of the device with respect to a common reference point. The voltage drop is the difference between the two readings. Two points in an electric circuit that are connected by an ideal conductor without resistance and not within a changing magnetic field have a voltage of zero. Any two points with the same potential may be connected by a conductor and no current will flow between them.

	~~*~~Potential Difference in a Series Circuit~~*~~		'''Potential Difference in a Series Circuit'''

	[[File: Seriess.jpg]]		[[File: Seriess.jpg]]
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	In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits series circuit], the potential difference supplied by the battery is divided up between the components. If the components all have the same resistance they will have equal amounts of potential difference across them. If the resistances are not equal, they may have different amounts of potential difference (See [https://en.wikipedia.org/wiki/Ohm%27s_law Ohm's Law]) across them but when added up they must always equal the potential difference supplied by the battery.		In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits series circuit], the potential difference supplied by the battery is divided up between the components. If the components all have the same resistance they will have equal amounts of potential difference across them. If the resistances are not equal, they may have different amounts of potential difference (See [https://en.wikipedia.org/wiki/Ohm%27s_law Ohm's Law]) across them but when added up they must always equal the potential difference supplied by the battery.

	~~*~~Potential Difference in a Parallel Circuit~~*~~		'''Potential Difference in a Parallel Circuit'''

	[[File: Parallel.jpg]]		[[File: Parallel.jpg]]
Line 42:		Line 42:
	In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],the potential difference supplied by the battery is the same potential difference as that across each of the components in the circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.		In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],the potential difference supplied by the battery is the same potential difference as that across each of the components in the circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.

	~~*~~Kirchoff's Voltage Law~~*~~		'''Kirchoff's Voltage Law'''

	One of [https://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws Kirchoff's Circuit Laws] (more specifically the Voltage Law) can be used to calculate the various voltages within a circuit. For example, the voltage between points A and C is the sum of the voltage between A and B and the voltage between B and C. The various voltages can be calculated using [https://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KVL.html Kirchoff's Voltage Law], which states that the directed sum of the electrical potential differences around any closed network is zero. Essentially, the sum of the potential differences in any closed loop is equivalent to the sum of the potential drops in that loop.		One of [https://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws Kirchoff's Circuit Laws] (more specifically the Voltage Law) can be used to calculate the various voltages within a circuit. For example, the voltage between points A and C is the sum of the voltage between A and B and the voltage between B and C. The various voltages can be calculated using [https://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KVL.html Kirchoff's Voltage Law], which states that the directed sum of the electrical potential differences around any closed network is zero. Essentially, the sum of the potential differences in any closed loop is equivalent to the sum of the potential drops in that loop.

Sydney: /* Applications */

2019-09-26T21:37:19Z

Applications

← Older revision		Revision as of 17:37, 26 September 2019
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	===A Computational Model===		===A Computational Model===
	[https://phet.colorado.edu/sims/html/john-travoltage/latest/john-travoltage_en.html John Travoltage] is a model for voltage using his body as the circuit.		[https://phet.colorado.edu/sims/html/john-travoltage/latest/john-travoltage_en.html John Travoltage] is a model for voltage using his body as the circuit.
	==Applications==		*Applications*

	~~===~~Circuits~~===~~		*Circuits*

	Potential difference is typically used in describing the voltage dropped across some sort of electrical device, such as a [https://en.wikipedia.org/wiki/Resistor resistor]. The voltage drop across the device is the difference between measurements at each terminal of the device with respect to a common reference point. The voltage drop is the difference between the two readings. Two points in an electric circuit that are connected by an ideal conductor without resistance and not within a changing magnetic field have a voltage of zero. Any two points with the same potential may be connected by a conductor and no current will flow between them.		Potential difference is typically used in describing the voltage dropped across some sort of electrical device, such as a [https://en.wikipedia.org/wiki/Resistor resistor]. The voltage drop across the device is the difference between measurements at each terminal of the device with respect to a common reference point. The voltage drop is the difference between the two readings. Two points in an electric circuit that are connected by an ideal conductor without resistance and not within a changing magnetic field have a voltage of zero. Any two points with the same potential may be connected by a conductor and no current will flow between them.

	~~====~~Potential Difference in a Series Circuit~~====~~		*Potential Difference in a Series Circuit*

	[[File: Seriess.jpg]]		[[File: Seriess.jpg]]
Line 36:		Line 36:
	In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits series circuit], the potential difference supplied by the battery is divided up between the components. If the components all have the same resistance they will have equal amounts of potential difference across them. If the resistances are not equal, they may have different amounts of potential difference (See [https://en.wikipedia.org/wiki/Ohm%27s_law Ohm's Law]) across them but when added up they must always equal the potential difference supplied by the battery.		In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits series circuit], the potential difference supplied by the battery is divided up between the components. If the components all have the same resistance they will have equal amounts of potential difference across them. If the resistances are not equal, they may have different amounts of potential difference (See [https://en.wikipedia.org/wiki/Ohm%27s_law Ohm's Law]) across them but when added up they must always equal the potential difference supplied by the battery.

	~~====~~Potential Difference in a Parallel Circuit~~====~~		*Potential Difference in a Parallel Circuit*

	[[File: Parallel.jpg]]		[[File: Parallel.jpg]]
Line 42:		Line 42:
	In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],the potential difference supplied by the battery is the same potential difference as that across each of the components in the circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.		In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],the potential difference supplied by the battery is the same potential difference as that across each of the components in the circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.

	~~===~~Kirchoff's Voltage Law~~===~~		*Kirchoff's Voltage Law*

	One of [https://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws Kirchoff's Circuit Laws] (more specifically the Voltage Law) can be used to calculate the various voltages within a circuit. For example, the voltage between points A and C is the sum of the voltage between A and B and the voltage between B and C. The various voltages can be calculated using [https://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KVL.html Kirchoff's Voltage Law], which states that the directed sum of the electrical potential differences around any closed network is zero. Essentially, the sum of the potential differences in any closed loop is equivalent to the sum of the potential drops in that loop.		One of [https://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws Kirchoff's Circuit Laws] (more specifically the Voltage Law) can be used to calculate the various voltages within a circuit. For example, the voltage between points A and C is the sum of the voltage between A and B and the voltage between B and C. The various voltages can be calculated using [https://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KVL.html Kirchoff's Voltage Law], which states that the directed sum of the electrical potential differences around any closed network is zero. Essentially, the sum of the potential differences in any closed loop is equivalent to the sum of the potential drops in that loop.

Sydney at 21:35, 26 September 2019

2019-09-26T21:35:57Z

@@ Line 24: / Line 24: @@
 ===A Computational Model===
 [https://phet.colorado.edu/sims/html/john-travoltage/latest/john-travoltage_en.html John Travoltage] is a model for voltage using his body as the circuit.
 ==Applications==
@@ Line 81: / Line 58: @@
 In the figure above, the total voltage around loop 1 should sum to zero, as does the total voltage in loop 2. Also, the loop which consists of the outer part of the circuit (the path ABCD) should also sum to zero, as shown by Kirchoff's Voltage Law.
 ==See Also==

Sydney: /* Potential Difference in a Parallel Circuit */

2019-09-26T21:31:09Z

Potential Difference in a Parallel Circuit

← Older revision		Revision as of 17:31, 26 September 2019
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	[[File: Parallel.jpg]]		[[File: Parallel.jpg]]

	In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],~~The~~ potential difference supplied by the battery is the same potential difference as that across each ~~component~~ in the ~~parallel~~ circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.		In a [https://en.wikipedia.org/wiki/Series_and_parallel_circuits parallel circuit],the potential difference supplied by the battery is the same potential difference as that across each of the components in the circuit. If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.


	===Kirchoff's Voltage Law===		===Kirchoff's Voltage Law===

Sydney: /* References */

2019-09-26T21:25:28Z

References

← Older revision		Revision as of 17:25, 26 September 2019
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	==References==		==References==
	[https://en.wikipedia.org/wiki/Voltage Voltage]<div></div>		*[https://en.wikipedia.org/wiki/Voltage Voltage]<div></div>
	[http://www.physicsclassroom.com/class/circuits/Lesson-1/Electric-Potential-Difference Potential Difference]<div></div>		*[http://www.physicsclassroom.com/class/circuits/Lesson-1/Electric-Potential-Difference Potential Difference]<div></div>
	[http://www.schoolphysics.co.uk/~~age16-19~~/Electricity%20and%20magnetism/Current%20electricity/text/Potential_and_potential_difference/index.html Potential and Potential Difference]<div></div>		*[http://www.schoolphysics.co.uk/age1619/Electricity%20and%20magnetism/Current%20electricity/text/Potential_and_potential_difference/index.html Potential and Potential Difference]<div></div>
	[http://www.physicsclassroom.com/class/circuits/Lesson-4/Parallel-Circuits Circuits]		*[http://www.physicsclassroom.com/class/circuits/Lesson-4/Parallel-Circuits Circuits]

Sydney: /* External Links */

2019-09-26T21:24:43Z

External Links

← Older revision		Revision as of 17:24, 26 September 2019
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	===External Links===		===External Links===
	[https://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KVL.html Kirchoff's Voltage Law]<div></div>		*[https://www.physics.uoguelph.ca/tutorials/ohm/Q.ohm.KVL.html Kirchoff's Voltage Law]<div></div>
	[http://www.physicsclassroom.com/class/circuits/Lesson-1/Electric-Potential-Difference Electric Potential Difference]		*[http://www.physicsclassroom.com/class/circuits/Lesson-1/Electric-Potential-Difference Electric Potential Difference]
	[https://www.youtube.com/watch?v=Ircup9aIJzU Calculating Potential, Potential Difference, and Voltage]<div></div>		*[https://www.youtube.com/watch?v=Ircup9aIJzU Calculating Potential, Potential Difference, and Voltage]<div></div>
	[https://www.youtube.com/watch?v=HJrkw_YQzcc Potential Difference as a Path Integral]		*[https://www.youtube.com/watch?v=HJrkw_YQzcc Potential Difference as a Path Integral]

	==References==		==References==

Sydney: /* Further Reading */

2019-09-26T21:24:23Z

Sydney: /* Kirchoff's Voltage Law */

2019-09-09T21:42:59Z

Kirchoff's Voltage Law

← Older revision		Revision as of 17:42, 9 September 2019
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	[[File: 9.png]]		[[File: 9.png]]

			'''Question'''

			What are the equations for voltage based on the loop rule for loop 1 and loop 2?

	In the figure above, the total voltage around loop 1 should sum to zero, as does the total voltage in loop 2. Also, the loop which consists of the outer part of the circuit (the path ABCD) should also sum to zero, as shown by Kirchoff's Voltage Law.		In the figure above, the total voltage around loop 1 should sum to zero, as does the total voltage in loop 2. Also, the loop which consists of the outer part of the circuit (the path ABCD) should also sum to zero, as shown by Kirchoff's Voltage Law.

← Older revision		Revision as of 17:24, 26 September 2019
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	===Further Reading===		===Further Reading===
	[https://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws Kirchoff's Circuit Laws] <div></div>		*[https://en.wikipedia.org/wiki/Kirchhoff%27s_circuit_laws Kirchoff's Circuit Laws] <div></div>
	[https://en.wikipedia.org/wiki/Alternating_current Alternating Current]<div></div>		*[https://en.wikipedia.org/wiki/Alternating_current Alternating Current]<div></div>
	[https://en.wikipedia.org/wiki/Direct_current Direct Current]<div></div>		*[https://en.wikipedia.org/wiki/Direct_current Direct Current]<div></div>
	[https://en.wikipedia.org/wiki/Electric_potential Electric Potential]<div></div>		*[https://en.wikipedia.org/wiki/Electric_potential Electric Potential]<div></div>
	[https://en.wikipedia.org/wiki/Ohm%27s_law Ohm's Law]		*[https://en.wikipedia.org/wiki/Ohm%27s_law Ohm's Law]

	===External Links===		===External Links===