Discussion
Assertion (A): A single-phase induction motor will run if given a push.
Reason (R): Once turning, the slips with respect to the two field components differ.
Select the correct option.
Answer: A
Correct answer: Both A and R are true, and R is the correct explanation of A
Both are true and the reason gives the mechanism. At standstill the rotor slips equally against both components of the pulsating field, so their torques cancel exactly. Once turning, the slip against the forward field is small and against the backward field nearly two, so the forward torque greatly exceeds the backward one and the machine accelerates.
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