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12.3 The motor effect

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Question 5

An electric motor has a coil of 6 turns. On one side of the coil, each turn has a straight 32 mm length of conductor at right angles to the magnetic field. The total force on this side of the coil is 0.0144 N when the current in the coil is 0.75 A.

Calculate the magnetic flux density of the field.

[4]
Markscheme

12.3 The motor effect Questions

  1. GCSE
  2. /Physics
  3. /12.3 The motor effect

86 exam-style questions on Edexcel GCSE Physics 12.3 The motor effect, covering 12.3.1 The motor effect, 12.3.2 Fleming's left-hand rule, 12.3.3 Force on a conductor, and 12.3.4 Electric motors. Each one has a worked solution and a mark scheme showing where the marks go.

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