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Question

Kilowatt hour (kWh) represents the unit of :

A
power
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B
impulse
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C
momentum
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D
energy
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Solution

The correct option is D energy
1 kW h = 1 kW ×1 h = 1000 W × 3600 s = 3600000 J = 3.6 106 J
The energy used in households, industries and commercial establishments are usually expressed in kilowatt hour.

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