The loss in a dc machine, which has the least proportion is 

  • Amechanical loss 
  • Biron loss
  • Carmature copper loss
  • Dfield copper loss
Correct Answer : (A)

mechanical 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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