Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 21% 11% 10% 41% 21% 11% 10% 41% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for All of these shunt motors. series motors. compound motors. All of these shunt motors. series motors. compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reactive power generated or delivered significantly depends on load angle. both 1 and 2. excitation. frequency. load angle. both 1 and 2. excitation. frequency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Semi closed slots or totally closed slots are used in induction motors, essentially to improve starting torque decrease starting torque increase pull out torque reduce magnetising current and improve power factor improve starting torque decrease starting torque increase pull out torque reduce magnetising current and improve power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives eddy current loss copper loss both 1and 2 hysteresis loss eddy current loss copper loss both 1and 2 hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to reduce the saturation in the interpole reduce the overall weight economise on the material required for interpoles and their windings increase the acceleration of commutation reduce the saturation in the interpole reduce the overall weight economise on the material required for interpoles and their windings increase the acceleration of commutation ANSWER DOWNLOAD EXAMIANS APP
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