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| Electric Power |
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| The power is the rate of doing work or in other words, it is the work done in one second. |
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| If a current of 'I' amperes flow through a conductor of resistance 'R' ohm for a time 't' seconds when the potential difference across its ends is 'V' volt, then the electric power consumed |
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| Using ohm's law, 'Power' can also be expressed as |
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| The unit of power is 'watt'. |
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| Thus if a potential difference of 1 volt causes a current of 1 ampere to flow through a wire, the electric power consumed by the wire is 1 watt. |
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