1.

Kilowatt-hour(kWh) is a unit of?(a) Current(b) Power(c) Energy(d) Resistance

Answer» Correct choice is (c) Energy

Easiest explanation: Power is the energy per unit time. That is, P=E/t. If the unit of power in kW and the unit of time is an hour, then the unit of energy=unit of power*unit of time=kWh.


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