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13.2 Transformers and the National Grid

13.2 Transformers and the National Grid

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Question 12

The primary coil of an electric toothbrush charger transformer is connected to a 240 V mains supply.

The potential difference across the secondary coil is 12 V.

The primary coil has 800 turns.

Calculate the number of turns on the secondary coil.

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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. Each one has a worked solution and a mark scheme showing where the marks go.

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