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JAMB Physics 1978 Question 33

Question 33

Electromagnetic Induction

On an a.c generator, which of the following does not apply?

  1. A.field magnet
  2. B.commutator
  3. C.armature
  4. D.slip rings
  5. E.carbon brushes.
Show the answer and explanation

Answer: B (commutator)

Explanation

An a.c. generator uses slip rings to collect alternating current. A commutator is used in a d.c. generator or motor.