Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 1 Hz 2.5Hz 2HZ 50Hz 1 Hz 2.5Hz 2HZ 50Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will run much faster in the same direction. The direction of rotation will reverse. The motor will run at its normal speed in the same direction as before. The motor will stop. The motor will run much faster in the same direction. The direction of rotation will reverse. The motor will run at its normal speed in the same direction as before. The motor will stop. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Demagnetization effects which of the following? commutation reduction in main field flux both B and C reduces the terminal voltage commutation reduction in main field flux both B and C reduces the terminal voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loop represents the area of total iron losses copper loss hysteresis loss eddy current loss total iron losses copper loss hysteresis loss eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Belt conveyors offer _______________ starting torque. high. zero. low. medium. high. zero. low. medium. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing divertor resistance of a DC series motor Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Increase in speed but armature currnet remains the same. Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Increase in speed but armature currnet remains the same. ANSWER DOWNLOAD EXAMIANS APP
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