In a synchronous motor, the magnitude of stator back e.m.f. £& depends on
A). d.c. excitation only
B). speed of the motor
C). load on the motor
D). both the speed and rotor flux
2. Induction heating process is based on which of the following principles?
4. The shaft of synchronous motor is made of
6. The magnitude of the induced e.m.f. in a conductor depends on the
8. In the case of a lossy capacitor, its series equivalent resistance value will be
9. Temperature of the stator winding of a three phase induction motor is obtained by
10. The cathdde voltage drop, in a mercury arc rectifier, is due to