Electrical Machines If the mechanical angle α between the stator and rotor poles increases, then the stator current Remains unchanged. Increases. Decreases. None of above. Remains unchanged. Increases. Decreases. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat generated in the transformer is dissipated mainly by convection. radiation. conduction. All of these convection. radiation. conduction. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the phase difference between two windings of A.C servomotor ? 120°. 60°. 90°. 30°. 120°. 60°. 90°. 30°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for shunt motors. All of these series motors. compound motors. shunt motors. All of these series motors. compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is 23 A. 11.5 A. 13.5 A. 27 A. 23 A. 11.5 A. 13.5 A. 27 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 0 Hz 1 Hz 50 Hz 5 Hz 0 Hz 1 Hz 50 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
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