The air gap between the yoke and armature is DC machines is kept very small so as to

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Electrical Engineering XYZ MCQs

The air gap between the yoke and armature is DC machine is kept very small so as to:

  1. Achieve a stronger magnetic field
  2. Avoid locking of the armature
  3. Avoid over heating
  4. All of these

Correct answer: 1. Achieve a stronger magnetic field

Explanation: The air gap in a DC machine, which is the space between the yoke (the outer frame of the machine) and the armature (the rotating part), plays a crucial role in the machine’s magnetic circuit. The air gap is intentionally kept small to achieve a stronger magnetic field.

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