Question

Kilowatt-hour is the commercial unit of

• A. Electric power
• B. Electric energy
• C. Electric force
• D. None of these

Answer 1

The correct option is B

Electric energy

Explanation

1. The electric energy in terms of power and time is $E=P\times t$
2. The units of electric energy in terms of the units of power and time is $\text{units of}E=\text{kW×h}=\text{kWh}$
3. The commercial unit of electrical energy is a kilowatt-hour (kWh).
4. The electric energy used in factories, industries, and houses which are measured in kWh.

Hence, option B is the correct answer.