Physicsmedium · Past Paper
How many Joules are there in 1 kilowatt-hour (kWh)?
A3.6 x 10^5 J
B3.6 x 10^6 J
C1000 J
D3600 J
✓ Correct Answer: B — 3.6 x 10^6 J
1 kWh = 1000 W * 3600 s = 3,600,000 Joules or 3.6 x 10^6 J.
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