In a DC machine, the demagnetizing effect of armature reaction is due to

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Electrical Engineering XYZ MCQs

In a dc machine, the demagnetizing effect of armature reaction is due to:

  1. Magnetic saturation in half of the field pole
  2. Component of armature mmf along field axis
  3. Uneven air-gap length
  4. Non-sinusoidal nature of armature MMF

Correct answer: 1. Magnetic saturation in half of the field pole

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