Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. Find the speed of stator magnetic field with respect to rotor? 1470 rpm 1500 rpm 30 rpm zero 1470 rpm 1500 rpm 30 rpm zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of the rotor bars of dc motors are laminated to reduce eddy current loss. to reduce mechanical losses. to provide better flux linkage. to reduce hysteresis loss. to reduce eddy current loss. to reduce mechanical losses. to provide better flux linkage. to reduce hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Differential compound motor Series motor Cumulative compound motors Shunt motor Differential compound motor Series motor Cumulative compound motors Shunt motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has got maximum relieving property? Cummulative compound. Differentical compound. Shunt. Series. Cummulative compound. Differentical compound. Shunt. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In single phase rotary converter the number of slip rings will be six. two. three. four. six. two. three. four. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Hysteresis loss. Copper loss. Stray loss. Eddy current loss. Hysteresis loss. Copper loss. Stray loss. Eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
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