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7.3 Induced potential, transformers and the National Grid (HT only)

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Question 23
H

An alternating current in the primary coil of a transformer produces an alternating potential difference across the secondary coil. Which sequence describes how this happens?

[1]
A

Alternating current, steady field in the core, field cuts the secondary, pd induced

B

Alternating current, changing field in the core, current passes to the secondary

C

Alternating pd, current passes along the core, field cuts the secondary, pd induced

D

Alternating current, changing field in the core, field cuts the secondary, pd induced

Markscheme

7.3 Induced potential, transformers and the National Grid (HT only) Questions

  1. GCSE
  2. /Physics
  3. /7.3 Induced potential, transformers and the National Grid (HT only)

40 exam-style questions on AQA GCSE Physics 7.3 Induced potential, transformers and the National Grid (HT only), covering 7.3.1 Induced potential (HT only), 7.3.2 Uses of the generator effect (HT only), 7.3.3 Microphones (HT only), and 7.3.4 Transformers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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