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JAMB Physics 1986 Question 41

Question 41

Electromagnetic Induction

Which of the following is NOT a part of a d.c. electric motor?

  1. A.Field-magnet
  2. B.Armature
  3. C.Commutator
  4. D.Transformer.
Show the answer and explanation

Answer: D (Transformer.)

Explanation

A d.c. motor has a field magnet, an armature coil and a commutator. A transformer is a separate device that works only with a.c.