Electrical Machines Hysteresis loop represents the area of copper loss total iron losses eddy current loss hysteresis loss copper loss total iron losses eddy current loss hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of a alternator, if P = number of poles and N = revolution made per second? 120P / N Hz. 120N / P Hz. PN / 2 Hz. 120 / PN Hz. 120P / N Hz. 120N / P Hz. PN / 2 Hz. 120 / PN Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Commutator. Dummy coils. Equalizer rings. Eye bolt. Commutator. Dummy coils. Equalizer rings. Eye bolt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor increases. None of these decreases. remains same. increases. None of these decreases. remains same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to provide starting torque only. reduce noise level only. prevent hunting and provide the starting torque. reduce the eddy currents. provide starting torque only. reduce noise level only. prevent hunting and provide the starting torque. reduce the eddy currents. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then it will run in same direction. it will run in opposite direction. it will run in same direction by slowly. motor will not run. it will run in same direction. it will run in opposite direction. it will run in same direction by slowly. motor will not run. ANSWER DOWNLOAD EXAMIANS APP
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