Three-point starters are not suitable for application where speed variation by flux control is required because the motor may

  • ANot start 
  • BRun away
  • CStop at very high speed
  • DStop at very slow speed
Correct Answer : (C)

Stop at very high speed

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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