A single-phase induction motor with only the main winding excited would exhibit the following response at synchronous speed
(A) Rotor current is zero (B) Rotor current is non-zero and is at slip frequency (C) Forward and backward rotating fields are equal (D) Forward rotating field is more than the backward rotating field
(A) Rotor current is zero (B) Rotor current is non-zero and is at slip frequency (C) Forward and backward rotating fields are equal (D) Forward rotating field is more than the backward rotating field