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7.2 The motor effect

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Question 20

An engineer is building a current-controlled latch for a storage cabinet. An iron rod is fixed in the centre of the latch.

Which describes what the engineer must add to make an electromagnet?

[1]
A

A straight current-carrying wire running along the iron rod.

B

A second iron rod connected directly to the first iron rod.

C

A current-carrying solenoid wound around the iron rod.

D

A current-carrying solenoid mounted beside the iron rod.

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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