Q

A heater is rated at 1000 W. If it is used for 2 hours, how much energy does it consume in kilowatt hours?

RRB Group D 10 Aug, 2026 (9:00 AM - 10:30 AM) 2026
✓ Answer: A 2 kWh
The correct choice is 2 kWh. It follows from the basic electrical relationship between voltage, current, resistance, charge or electrical energy described in the question.
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