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3.2 Dissipation and efficiency

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Question 12

For one domestic solar panel:

  • the energy input per second from sunlight is 8.5 kJ
  • the useful electrical energy output per second is 3.4 kJ.

Calculate the efficiency of this solar panel.

[2]
Markscheme

3.2 Dissipation and efficiency Questions

  1. GCSE
  2. /Physics
  3. /3.2 Dissipation and efficiency

38 exam-style questions on Edexcel GCSE Physics 3.2 Dissipation and efficiency, covering 3.2.1 Dissipation of energy, 3.2.2 Reducing unwanted energy transfers, 3.2.3 Efficiency, and 3.2.4 Increasing efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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