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Electrical Energy and Power
Source of package openstax.electrodynamics · OpenStax University Physics, ch. 9 Current and Resistance, module m58734
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- urn:openstax:clir:electrodynamics#M58734
- number
- OpenStax University Physics, ch. 9 Current and Resistance, module m58734
- kind
- urn:openstax:clir:electrodynamics#treatise
m58734/index.cnxml at commit d0ed34a (main, 2026-06-11)
- edition
- urn:openstax:clir:electrodynamics#M58734_MAIN
- language
- en
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- official
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- adopted: 2026-06-11
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| URI | Type | documentHash | Retrieved |
|---|---|---|---|
| https://raw.githubusercontent.com/openstax/osbooks-university-physics-bundle/d0ed34a5851119a42e3d972dfc0ff49e4663977c/modules/m58734/index.cnxml | application/xml; charset=utf-8 | sha256:bb86289ef38a9d82018bacb8c99216e5d36494e839ae3ec326b00f77ad660e30 | 2026-09-06T00:00:00Z |
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module/m58734#fs-id1170903905040 · section · referenced by: 1
en · official · sha256:fd13dda4fa2f0fe960b65fd27f333deeb7bad6f54ad5278bf834c47631bed8fe
<note id="fs-id1170903905040">
<title>Electric Power</title>
<para id="fs-id1170903806059">The electric power gained or lost by any device has the form</para>
<equation id="fs-id1170903888872"><m:math><m:mrow><m:mi>P</m:mi><m:mo>=</m:mo><m:mi>I</m:mi><m:mi>V</m:mi><m:mo>.</m:mo></m:mrow></m:math></equation>
<para id="fs-id1170902347467">The power dissipated by a resistor has the form</para>
<equation id="fs-id1170904156987"><m:math><m:mrow><m:mi>P</m:mi><m:mo>=</m:mo><m:msup><m:mi>I</m:mi><m:mn>2</m:mn></m:msup><m:mi>R</m:mi><m:mo>=</m:mo><m:mfrac><m:mrow><m:msup><m:mi>V</m:mi><m:mn>2</m:mn></m:msup></m:mrow><m:mi>R</m:mi></m:mfrac><m:mo>.</m:mo></m:mrow></m:math></equation>
</note>Referencing norms: PowerIsCurrentTimesVoltage
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