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Q.

Unit of electric power can also be expressed as


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a

Volt ampere

b

Kilowatt hour

c

Watt second

d

Joule second 

answer is A.

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Detailed Solution

Unit of electric power can also be expressed as Volt ampere.
Electric power is the rate at which an electric circuit transfers electrical energy.
The mathematical expression of power is
Power, P=VI, where I is current, and V is voltage.
The S.I. unit of the current is Ampere, and the S.I. unit of the voltage is Volt.
Therefore Unit of electric power can also be expressed as a Volt ampere.
 
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