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Watt Hour Meter

where we use ...

Question

where we use unit of energy in joules and where we use unit of energy in kilowatthour??

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Solution

Dear Student,

SI unit of electrical energy is Joule and commercial unit of electrical energy is kWh. But Joule is too small and inconvenient to express large quantity. Hence, we use a bigger unit of electrical energy which is kWh.

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