Q

An electric heater is rated 2000 W and is used for 2 hours. How much energy is consumed in joules?

RRB Group D 03 Aug, 2026 (4:30 PM - 6:00 PM) 2026
✓ Answer: B 14,400,000 joules
Energy = power × time = 2000 × (2×3600) = 14,400,000 J.
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