Magnetism and electromagnetismQuestion 876 of 1506

A permanent magnet is held still next to a coil. What voltage is induced in the coil?

  1. A steady DC voltage
  2. An AC voltage at 60 Hz
  3. A voltage set by magnet strength
  4. None, because the flux is not changing
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Correct answer: None, because the flux is not changing

Voltage is induced only when the flux changes and cuts across the conductor.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 14.5: Electromagnetic Induction

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Questions last reviewed: 18 October 2026