Question

A kilowatt-hour is unit of
A) Power B) Electric charge C) Energy D) Electric current

Answer 1

Answer:

C Energy

Explanation:

Hi!!

We know that

H{Heat}=P*T

OR

By applying dimesional analysis

KW is unit of power and hours is unit of time

P=M^1L^2T^-3 and T=T^1

Now on multiplying them we get

H=M^1 L^2 T^-2

Now this analysis is possible for energy hence option C energy is correct