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1.7.1a Energy stores and energy transfers

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Question 26

The power input to an electric motor is 800 W. The efficiency of the motor is 70%.

How much power is wasted?

A

240 W240\text{ W}240 W

B

70 W70\text{ W}70 W

C

560 W560\text{ W}560 W

D

870 W870\text{ W}870 W

Markscheme

1.7.1a Energy stores and energy transfers Questions

  1. IGCSE
  2. /Physics
  3. /1.7.1a Energy stores and energy transfers

229 exam-style questions on CIE IGCSE Physics 1.7.1a Energy stores and energy transfers. Each one has a worked solution and a mark scheme showing where the marks go.

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