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7.2 The motor effect

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Question 1

A motor turns a ventilation fan clockwise. The technician tests three changes separately: in trial A, the current is reversed; in trial B, the magnetic field is reversed; in trial C, both the current and the magnetic field are reversed.

Which trial or trials make the fan turn anticlockwise?

[1]
A

Trials A and B only

B

Trials A, B and C

C

None of the trials

D

Trial C only

Markscheme

7.2 The motor effect Questions

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

90 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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