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

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Question 4
H

An alternator and a dynamo both use the generator effect. What is the difference in their construction?

[1]
A

An alternator has a coil and a dynamo has a permanent magnet

B

An alternator has an iron core and a dynamo has an air core

C

An alternator uses a split-ring commutator, a dynamo uses slip rings

D

An alternator uses slip rings, a dynamo uses a split-ring commutator

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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