AC generationQuestion 517 of 1506

What shape of voltage does a rotating loop in a magnetic field produce?

  1. A flat line like direct current
  2. A square wave
  3. A sine wave that rises and falls
  4. A straight rising ramp
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Correct answer: A sine wave that rises and falls

The cutting of flux changes as the loop turns.

Source: Trigonometry and Single Phase AC Generation for Electricians (Flinn), 3.3: How a Waveform Is Generated

Practice ac generation

Questions last reviewed: 18 October 2026