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Question

Number of kilowatt-hours = volt×ampere×...........1000

A
time in seconds
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B
time in minutes
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C
time in hours
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D
time in days
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Solution

The correct option is C time in hours
Power, P=VI
1 kilowatt-hour means P=1kW=1000W and time t=1hour
As kWh is the unit of electrical energy so 1kWh=VIt/1000.
Thus, time will be in hour.

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