In a basic rotating electromagnetic machine, how does motor construction differ from generator construction?

Start playing free

  1. A generator needs permanent magnets, a motor does not
  2. A motor has no coils
  3. They have the same basic construction

🔒 The answer is for AhaBulb members. Members see the answer, why it's right and the official sources for every card of Stuff Every Engineer Should Know, plus timed practice exams.

The first 50 cards of every test are free to play.

Play the free cards See membership

Like this card?
Play the game

References

  1. OpenStax College Physics 2e, 23.6 Back Emf openstax.org/books/college-physics-2e/pages/23-6-back-emf Checked 2026-10-10.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game