Archive:Principles of Electricity - Revision history

wikademia>Wikademia: moved Principles of Electricity to Archive:Principles of Electricity

2009-06-12T08:19:41Z

← Older revision	Revision as of 08:19, 12 June 2009
(No difference)

2009-04-11T18:18:15Z

Text replace - 'w:' to 'Wikipedia:'

← Older revision		Revision as of 18:18, 11 April 2009
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	where:		where:
	<br>		<br>
	*V= voltage (Measured in [[w:Voltage\|Volts]])		*V= voltage (Measured in [[Wikipedia:Voltage\|Volts]])
	*I= current (Measured in [[w:Electric_current\|Amperes]])		*I= current (Measured in [[Wikipedia:Electric_current\|Amperes]])
	*R= resistance (Measured in [[w:Electrical_resistance\|Ohms]])		*R= resistance (Measured in [[Wikipedia:Electrical_resistance\|Ohms]])
	*P= power (Measured in [[w:Electric_power\|Watts]])		*P= power (Measured in [[Wikipedia:Electric_power\|Watts]])
	Ohm's Law		Ohm's Law
	<math>V=I*R</math>		<math>V=I*R</math>

2009-03-23T11:15:30Z

← Older revision		Revision as of 11:15, 23 March 2009
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	{{~~welcome and expand~~}}		{{wh}}

	'''Basic formulas calculating resistance, current, voltage, and power-'''		'''Basic formulas calculating resistance, current, voltage, and power-'''

2009-03-23T11:11:59Z

20 revisions

← Older revision	Revision as of 11:11, 23 March 2009
(No difference)

2008-06-14T21:48:19Z

← Older revision		Revision as of 21:48, 14 June 2008
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	[[Category:Electrical engineering]]		[[Category:Electrical engineering]]
			[[Category:Electricity]]

2008-03-29T23:18:12Z

wikify

← Older revision		Revision as of 23:18, 29 March 2008
Line 5:		Line 5:
	where:		where:
	<br>		<br>
	*V= voltage (Measured in ~~Volts)~~[~~http~~:~~//en.wikipedia.org/wiki/~~Voltage]		*V= voltage (Measured in [[w:Voltage\|Volts]])
	*I= current (Measured in ~~Amperes)~~[~~http~~:~~//en.wikipedia.org/wiki/~~Electric_current]		*I= current (Measured in [[w:Electric_current\|Amperes]])
	*R= resistance (Measured in ~~Ohms)~~[~~http~~:~~//en.wikipedia.org/wiki/~~Electrical_resistance]		*R= resistance (Measured in [[w:Electrical_resistance\|Ohms]])
	*P= power (Measured in ~~Watts)~~[~~http~~:~~//en.wikipedia.org/wiki/~~Electric_power]		*P= power (Measured in [[w:Electric_power\|Watts]])
	Ohm's Law		Ohm's Law
	<math>V=I*R</math>		<math>V=I*R</math>

2008-03-29T23:10:49Z

← Older revision		Revision as of 23:10, 29 March 2008
Line 5:		Line 5:
	where:		where:
	<br>		<br>
	*V= voltage (Measured in Volts)		*V= voltage (Measured in Volts)[http://en.wikipedia.org/wiki/Voltage]
	*I= current (Measured in Amperes)		*I= current (Measured in Amperes)[http://en.wikipedia.org/wiki/Electric_current]
	*R= resistance (Measured in Ohms)		*R= resistance (Measured in Ohms)[http://en.wikipedia.org/wiki/Electrical_resistance]
	*P= power (Measured in Watts)		*P= power (Measured in Watts)[http://en.wikipedia.org/wiki/Electric_power]
	Ohm's Law		Ohm's Law
	<math>V=I*R</math>		<math>V=I*R</math>

2008-02-21T08:15:24Z

← Older revision		Revision as of 08:15, 21 February 2008
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	*note 2 values must be given to find unknown		*note 2 values must be given to find unknown

	~~To find proof of this 'power law', we need the definition of power, which is: the rate at which work is done (on moving charges)~~
	~~<math>~~
	~~P\ = (dW \over dt)~~
	~~</math>~~
	~~But:~~
	~~<math>~~
	~~W =~~
	[[Category:Electrical engineering]]		[[Category:Electrical engineering]]

2008-02-21T08:12:02Z

← Older revision		Revision as of 08:12, 21 February 2008
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	To find proof of this 'power law', we need the definition of power, which is: the rate at which work is done (on moving charges)		To find proof of this 'power law', we need the definition of power, which is: the rate at which work is done (on moving charges)
	<math>		<math>
	P\ = dW \over dt		P\ = (dW \over dt)
	</math>		</math>
	But:		But:

2008-02-21T08:11:32Z

← Older revision		Revision as of 08:11, 21 February 2008
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	Ohm's Law		Ohm's Law
	<math>V=I*R</math>		<math>V=I*R</math>

			The definition of resistance requires us to regard it as a derived quantity. Resistance is associated with particular '''objects''' and not '''materials'''. For any device, we 'supply' a electric potential difference (voltage) and a current, and take the ratio of these two measured quantities to find resistance, as per 'Ohm's Law'. The elementary case of this law states that the relation is linear for all values of voltage and current, but this is not true. At high temperatures (generally, non-standard conditions) the linearity breaks down, in loose analogy to yield strength of a solid (continuum).

	<br>		<br>
	Power Law		Power Law
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	*note 2 values must be given to find unknown		*note 2 values must be given to find unknown

			To find proof of this 'power law', we need the definition of power, which is: the rate at which work is done (on moving charges)
			<math>
			P\ = dW \over dt
			</math>
			But:
			<math>
			W =
	[[Category:Electrical engineering]]		[[Category:Electrical engineering]]