An ideal synchronous motor has no starting torque because the
A. rotor is made up of salient poles.
B. relative velocity between the stator and the rotor mmfs is zero.
C. relative velocity between the stator and rotor mmfs is not zero.
D. rotor winding is highly reactive. [I.E.S. 1998]
Answer:B
An ideal synchronous motor has no starting torque because the
A. rotor is made up of salient poles. B. relative velocity between the stator and the rotor mmfs is zero. C. relative velocity between the stator and rotor mmfs is not zero. D. rotor winding is highly reactive. [I.E.S. 1998]