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1 kWh (kilowatt-hour) equals:
A1 kJ
B60 J
C1000 J
D3.6 × 10⁶ joules (= 3.6 MJ)
Answer & Solution
Correct answer: D. 3.6 × 10⁶ joules (= 3.6 MJ)
1 kWh = 1 kW × 1 hr = 1000 W × 3600 s = 3.6 × 10⁶ J = 3.6 MJ. Common billing unit for electricity. India: ~₹6-10/kWh residential rate (varies).
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