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7.2 The motor effect

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Question 20
H

A current-carrying wire lies between the poles of a magnet. The wire is turned until it lies along the direction of the magnetic field lines. What is the force on the wire?

[1]
A

Zero, because the current in the wire has been switched off

B

Zero, because the wire is no longer at right angles to the field

C

A maximum, because the wire now points along the magnetic field

D

Unchanged, because the current and the field have not changed

Markscheme

7.2 The motor effect Questions

  1. GCSE
  2. /Physics
  3. /7.2 The motor effect

39 exam-style questions on AQA GCSE Physics 7.2 The motor effect, covering 7.2.1 Electromagnetism, 7.2.2 Fleming's left-hand rule (HT only), 7.2.3 Electric motors (HT only), and 7.2.4 Loudspeakers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.

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