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IvanTheTerrible
Joined: 03 Oct 2009
Posts: 4
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 24 Oct 2009 4:55 energy |
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Energy is equal to charge times voltage?
E= Q x V
can someone show me why
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Google
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24 Oct 2009 4:55 Ads |
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hamdard
Joined: 09 Jun 2006
Posts: 215
Helped: 10
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24 Oct 2009 7:01 Re: energy |
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| it is even give in class 12 th books. refer it.
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micard
Joined: 14 Oct 2009
Posts: 21
Helped: 1
Location: Maastricht
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25 Oct 2009 22:51 energy |
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| it is due to the definition of voltage- Voltage is the difference in the electric potential between two points, and the electric potential is the amount of energy needed to move charged particle from infinity to particular place divided by charge of this particle.
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Kral
Joined: 28 Mar 2005
Posts: 1182
Helped: 187
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26 Oct 2009 23:25 Re: energy |
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Ivanthe terrible,
See the following Wikipedia definition, which shows a progression of definitions finally resulting in Newton-Meter/Farad. Multiplying by C gives newton-meter which is energy.
Regards,
Kral
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mess123
Joined: 30 Nov 2008
Posts: 38
Helped: 3
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27 Oct 2009 0:14 energy |
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E=P*t
= (V*I)*t
= (V*Q) because i is rate of flow of charge (dq/dt)
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Kral
Joined: 28 Mar 2005
Posts: 1182
Helped: 187
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27 Oct 2009 14:25 Re: energy |
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Ivanthe terrible,
My previous reply was incorrect. It should have read Newton-Meter/Coulomb.
The Wikipedia use of the symbol "C" for charge instead of the usual symbol "Q" is a little confusing.
regards,
Kral
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