Correct option is C
(c) Unit
The commercial unit of electric energy is the kilowatt-hour (kWh), often referred to simply as a unit.
- One unit (1 kWh) is the energy consumed by a 1000-watt device running for one hour.
- Energy consumption is measured in kilowatt-hours (kWh) by electric meters.
Information Booster:
- 1 kWh = 1000 watts used for one hour.
- The unit is used to measure electricity consumption in homes, industries, and businesses.
- Watt (option a) is a unit of power, not energy.
- Watt/hour (option b) is not a standard unit of energy.
Additional Information:
- Joules (J) can also be used to measure energy but is not typically used in commercial contexts.