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13.2 Transformers and the National Grid

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Question 2
F

The Figure shows how electrical energy is transferred from a power station to homes in the national grid.

Figure

image

a.

Name the type of transformer at A.

Give a reason for your answer using information from the Figure.

[2]
b.

Name the type of transformer at B.

[1]
c.

Give one reason why the potential difference is reduced to 230 V before electricity reaches homes.

[1]
Markscheme

13.2 Transformers and the National Grid Questions

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

108 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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