High inrush of current during a starting of a dc motor can efficiently be restricted to a safer value by increasing the  _________  resistance.

  • AShunt field
  • BArmature circuit
  • CBoth a and b
  • DNone of these
Correct Answer : (B)

Armature circuit

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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