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4.5.5 The d.c. motor

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Question 11

A current-carrying coil is placed in the magnetic field between the poles of two magnets. The coil experiences a turning effect.

Which change would increase this turning effect?

A

increasing the distance between the magnetic poles

B

decreasing the current in the coil

C

increasing the number of turns of the coil

D

decreasing the cross-sectional area of the coil

Markscheme

4.5.5 The d.c. motor Questions

  1. IGCSE
  2. /Physics
  3. /4.5.5 The d.c. motor

31 exam-style questions on CIE IGCSE Physics 4.5.5 The d.c. motor. Each one has a worked solution and a mark scheme showing where the marks go.

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