Synchronous motors are generally not self-starting because:
Astartes cannot be used on these machines
Bthe direction of instantaneous torque reverses after half cycle
Cstarting winding is not provided on the machines
Dthe direction of rotation is not fixed
Correct answer
B. the direction of instantaneous torque reverses after half cycle
Explanation
The correct answer is the direction of instantaneous torque reverses after half cycle.