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1.7.1a Energy stores and energy transfers

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Question 24

The kinetic energy of air passing through a wind turbine every minute is 1 200 000 J1\,200\,000\text{ J}1200000 J. The electrical output of the turbine is 12 A12\text{ A}12 A at a potential difference (p.d.) of 250 V250\text{ V}250 V.

Calculate the efficiency (%) of the wind turbine.

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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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