The losses occurring in a dc machine has the largest percentage is

  • AIron loss
  • BWindage loss
  • CCopper loss
  • DIron loss
Correct Answer : (C)

Copper loss

Hints :

The current drawn by a 120 V dc motor with back emf of 110 V and armature resistance of 0.4 ohm is


With the increase in speed of a dc motor

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