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AhaBulb: Stuff Everyone Should Know · ahabulb.com/eng-motor-back-emf-startup

When does a simple DC motor connected directly to fixed voltage draw the most current?

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  1. At full speed with no load
  2. When it is switched on but not yet turning
  3. Just as it is switched off

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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.

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