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Question

SAQ : What is a commercial unit of electrical energy? Express it in joule

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Answer

Question

What is a commercial unit of electrical energy? Express it in joule.

Answer

The commercial unit of electrical energy is kWh.

1 kWh = 1000 W × 1 hr

= 1000 W × 3600s

= 36 × 105 Ws

= 3.6 × 106 J.

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