A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?

Correct answer: D. not start at all

  • A. start and then stop
  • B. start and run slowly
  • C. start and run at rated speed
  • D. not start at all

Explanation

The capacitor produces the phase lead needed to create starting torque in a capacitor-start motor. Replacing it with an inductor produces the opposite phase effect, so the motor will not develop the required starting torque.

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