What is the effect of motor, if the rotor windings in slipring induction motor is open circuited at starting?

Multiple Choice Question (MCQ)

Question: What is the effect of motor, if the rotor windings in slipring induction motor is open circuited at starting?

A. Will not run

B. Runs at slow speed

C. Runs at very high speed

D. Runs but not able to pull load

Correct Answer: Will not run

Explanation

The basic principle on which the transformer works is Faraday's Law of Electromagnetic Induction or mutual induction between the two coils. It works on the alternating current only because an alternating flux is required for mutual induction between the two windings.