Question

Which of the following is the commercial unit of electric energy?

• A. Kilowatt hour
• B. Joule
• C. Calorie
• D. Watt second

Answer 1

Answer:

A. Kilowatt hour

Unit of Energy is Kilowatt hour.commonly used to measure energy consumption. A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units, which is the energy delivered by one kilowatt of power for one hour. Kilowatt-hours are a common billing unit for electrical energy supplied by electric utilities.