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

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Question 45
H

A bar magnet is held stationary inside a coil of wire connected to a sensitive ammeter. The ammeter reads zero. Which statement explains why?

[1]
A

The magnetic field inside the coil of wire is zero

B

The magnetic field through the coil is not changing

C

The coil does not have enough turns of wire on it

D

The magnet is not touching the turns of the coil

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)

96 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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