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13.2 Transformers and the National Grid

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Question 9

Complete the following sentence using one of the phrases from the box below.

  • a step-down transformer
  • a step-up transformer
  • a turbine
  • an alternator
  • a condenser

To minimize thermal energy losses in transmission cables by reducing the current, the device used to increase the potential difference immediately after the power station is ____________.

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Markscheme

13.2 Transformers and the National Grid Questions

  1. GCSE
  2. /Physics
  3. /13.2 Transformers and the National Grid

28 exam-style questions on Edexcel GCSE Physics 13.2 Transformers and the National Grid, covering 13.2.1 Transformers and induction, 13.2.2 The transformer turns-ratio equation, 13.2.3 The National Grid, 13.2.4 The transformer power equation, and 13.2.5 Advantages of high-voltage transmission. Each one has a worked solution and a mark scheme showing where the marks go.

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