alleryWhat does the unit kilowatt hour (kWh) measure?
AElectrical power
BElectrical energy
CElectric resistance
DElectric charge
Answer & Solution
Correct answer: B. Electrical energy
1. The kilowatt hour is power (kilowatt) multiplied by time (hour).
2. Power times time equals energy, so kWh measures electrical energy.
3. It is the commercial unit of energy; the watt alone measures power.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 4 Electricity "Electricity", p.62_
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