Synchronous Motors
Synchronous capacitor is

An ordinary static capacitor bank
An over excited synchronous motor running without mechanical load
None of the listed here
An over excited synchronous motor driving mechanical load

ANSWER DOWNLOAD EXAMIANS APP

Synchronous Motors
The power factor of a synchronous motor is better than that of induction motor because

synchronous motor runs at synchronous speed
mechanical load on the motor can be adjusted
synchronous motor has large air gap
stator supply is relieved of responsibility of producing magnetic field

ANSWER DOWNLOAD EXAMIANS APP