Lesson: Chapter 10 — Power and energy in electrical appliances

10.5. Measuring energy in kilowatt-hours 1 of 4 Reset answers

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Question 1

What is a kilowatt-hour?

A A unit of power B A unit of current C The energy a 1 kW appliance uses in one hour D 1000 joules

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The energy a 1 kW appliance uses in one hour. It is a unit of energy, equal to 3.6 × 10⁶ J.

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