Question

Define 1 kWh. Also, express its value in joules (J).​

Answer 1

Answer:

One kilowatt-hour is the amount of electrical energy consumed when an electrical appliance of 1000watts is used for 1 hour.

1kwh=36,00,000 joules or 3.6 × 10⁶ joules

Answer 2

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1 KWh is defined as the 1000 J energy used in 1 hour.

We know,

1kWh = 1000W * 3600000s

         = 3.6 * 10⁶ Ws

         = 3.6 * 10⁶ J