Correct option is B
The correct answer is (B) Kilowatt-hour.
- Kilowatt-hour (kWh) is the commercial unit of electric energy. It represents the amount of energy consumed when a power of one kilowatt is used for one hour. This unit is commonly used by utility companies to measure and bill electricity consumption.
Information Booster:
- Calorie: Primarily used to measure energy in the context of food and heat.
- Joule: The SI unit of energy, where 1 kWh equals 3.6 million joules.
- Watt-second: Also a unit of energy, but it is rarely used commercially as it is equivalent to just one joule.
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