Question

Unit of electric power may also be expressed as:

• A. volt ampere
• B. kilowatt hour
• C. watt second
• D. joule second

Answer 1

The correct option is A volt ampere

Hint : Electric power can also be expressed as product of voltage and current.

Step 1 : Find power in terms of potential difference and current

Power can be given as:

$P=V\times I$

$V$ (potential difference) is measured in $volt$ and $I$(current) is measured in $Ampere$.

So, electric power can also be given in terms of $volt-ampere$