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8.3 Power and efficiency

8.3 Power and efficiency

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Question 6

An industrial fiber laser system operates at an average power of 12.5 kW while cutting thick steel plates.

During a continuous manufacturing run, the total energy consumed by the laser system is 270 MJ270 \text{ MJ}270 MJ.

Calculate the duration of this manufacturing run.

Give your answer in hours.

[2]
Markscheme

8.3 Power and efficiency Questions

  1. GCSE
  2. /Physics
  3. /8.3 Power and efficiency

26 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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