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In case of DC machine winding, number of commutator segments
1. number of armature coils
2. number of armature coil sides
3. number of armature conductors
4. number of armature turns

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Correct Answer - Option 1 : number of armature coils

Commutator segments:

  • The purpose of the commutator is to rectify the ac waveform.
  • The segments of the commutator are insulated from each other and the armature shaft.
  • Wires from the armature are connected to the armature segments.
  • Armature current is conducted from the commutator to the load by carbon brushes.
  • To help produce a smoother dc output, more coils and commutator segments are used.
  • The coils are insulated from each other, the same as the commutator segments.
  • The number of commutator segments is equal to the number of slots or coils

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