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Power and efficiency

Power and efficiency

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Question 13

An electric lamp has an input energy of 1500 J. The useful output light energy is 600 J.

What is the wasted energy?

A

600 J600\text{ J}600 J

B

900 J900\text{ J}900 J

C

1500 J1500\text{ J}1500 J

D

2100 J2100\text{ J}2100 J

Markscheme

Power and efficiency Questions

  1. GCSE
  2. /Physics
  3. /Power and efficiency

37 exam-style questions on OCR GCSE Physics Power and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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