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Physics (AS & A Level) · Feb / March 2023 · Paper 12 · Question 16

9702Energy conservation

A system with an efficiency of 74% wastes 230 W of power. What is the useful output power of the system?

  1. A170 W
  2. B310 W
  3. C650 W
  4. D880 W

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Correct answer: C. 650 W

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