Which of the following motor is expected to have maximum full load efficiency?

  • A1 kW
  • B5 kW
  • C30 kW 
  • D100 kW 
Correct Answer : (D)

100 kW 

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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