Single Phase Motors
In repulsion motor, maximum torque is developed when

None of these
brush axis coincides with the field axis
brush axis is at 45° electrical to the field axis
brush axis is at 90° electrical to the field axis

ANSWER DOWNLOAD EXAMIANS APP

Single Phase Motors
Which of the following statements regarding a reluctance motor is incorrect ?

It cannot be reversed, ordinarily
It is nothing else but a single-phase, salient pole synchronous-induction motor
It requires no D.C. field excitation for its operation
Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluc-tance path between stator and rotor

ANSWER DOWNLOAD EXAMIANS APP