Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Both the speed and rotor flux Dc excitation only Load on the motor Speed of the rotor Both the speed and rotor flux Dc excitation only Load on the motor Speed of the rotor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Power factor of a synchronous motor is unity when None of the listed here The armature current is minimum The armature current is zero The armature current is maximum None of the listed here The armature current is minimum The armature current is zero The armature current is maximum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ A capacitor None of the listed here A resistor An inductor A capacitor None of the listed here A resistor An inductor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. None of the listed here 0.8 leading 0.8 lagging Unity None of the listed here 0.8 leading 0.8 lagging Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Directly proportional to square of Invesely proportional to Independent of Directly proportional to Directly proportional to square of Invesely proportional to Independent of Directly proportional to ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be less than the supply voltage more than the supply voltage None of these equal to the supply voltage less than the supply voltage more than the supply voltage None of these equal to the supply voltage ANSWER DOWNLOAD EXAMIANS APP
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