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12 Magnetism and the motor effect

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Question 74
H

At one instant, side P of a motor coil is to the left of the axle and experiences an upward force. After half a turn, P is to the right of the axle. The split-ring commutator operates correctly. Which gives the force on P after this half-turn and the direction of the turning effect?

[1]
A

Force upwards; turning effect in the original direction

B

Force downwards; turning effect opposite to the original direction

C

Force upwards; turning effect opposite to the original direction

D

Force downwards; turning effect in the original direction

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12 Magnetism and the motor effect Questions

  1. GCSE
  2. /Physics
  3. /12 Magnetism and the motor effect

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