Q

A device uses 1 kilowatt (kW) of power for 1 hour. How much energy does it consume?

RRB Group D 18 Aug, 2026 (4:30 PM - 6:00 PM) 2026
✓ Answer: C 1 kilowatt hour (kWh)
The correct choice is 1 kilowatt hour (kWh). It follows from the basic electrical relationship between voltage, current, resistance, charge or electrical energy described in the question.
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