What is the unit of electrical energy commonly used by power companies?
A
Kilowatt-hour
B
Joule
C
Watt
D
Ampere-hour
Correct Answer: Option A — Kilowatt-hour
Explanation:
The kilowatt-hour is a practical unit representing the energy consumed by a one-kilowatt device operating for one hour. Power companies use ...
The kilowatt-hour is a practical unit representing the energy consumed by a one-kilowatt device operating for one hour. Power companies use this unit to measure and bill household and industrial electricity consumption accurately.