Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve power factor. reduce copper loss. improve efficiency. improve starting torque. improve power factor. reduce copper loss. improve efficiency. improve starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is not dependent on the slip directly proportional to slip inversely proportional to slip either of these not dependent on the slip directly proportional to slip inversely proportional to slip either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Drop in speed from no load to full load is very high in Shunt motor with interpoles. Series motor without interpoles. Cummulative compound motor with interpoles. Series motor with interpoles. Shunt motor with interpoles. Series motor without interpoles. Cummulative compound motor with interpoles. Series motor with interpoles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as V f² V² f V f² V² f ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will continue to work as synchronous motor with same direction of rotation. start working as induction motor. come to stand still. continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. start working as induction motor. come to stand still. continue to work as alternator but the direction of rotation will reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to f2 V2 V f f2 V2 V f ANSWER DOWNLOAD EXAMIANS APP
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