Electrical Machines The speed of a 3-phase induction motor operating in its stable region remains constant. increases with increase in the load torque. decreases with decrease in the load torque. decreases with increase in the load torque. remains constant. increases with increase in the load torque. decreases with decrease in the load torque. decreases with increase in the load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of a DC motor both back emf as well as line current fall. back emf increases but line current falls. back emf falls and line current increases. both back emf as well as line current increase. both back emf as well as line current fall. back emf increases but line current falls. back emf falls and line current increases. both back emf as well as line current increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loop represents the area of eddy current loss hysteresis loss total iron losses copper loss eddy current loss hysteresis loss total iron losses copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will not run. continue running in the same direction as before. run in a direction opposite to previous one. get damaged. not run. continue running in the same direction as before. run in a direction opposite to previous one. get damaged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: under trailing pole tip. pole core. under the interpole. under leading pole tip. under trailing pole tip. pole core. under the interpole. under leading pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For high current and low current rating which winding is employed to DC machine? Both lap and wave winding Wave winding None of above Lap winding Both lap and wave winding Wave winding None of above Lap winding ANSWER DOWNLOAD EXAMIANS APP
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