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The unit of electric power may also be expressed as

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Kilowatt hour

Watt second

Joule second

Volt ampere

answer is A.

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Detailed Solution

Power is the amount of energy transferred per unit of time. Hence its SI unit is Joule/second or Watt.

Power is also expressed as:
P=V×I

Where,

V (potential difference) is measured in volt, and I (current) is measured in Ampere.
So, electric power can also be given in terms of volt−ampere.

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