Electrical Machines The armature core of the rotor bars of dc motors are laminated to reduce hysteresis loss. to provide better flux linkage. to reduce eddy current loss. to reduce mechanical losses. to reduce hysteresis loss. to provide better flux linkage. to reduce eddy current loss. to reduce mechanical losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control is provides speed control In both direction. In one direction only. Below rated speed. Above rated speed. In both direction. In one direction only. Below rated speed. Above rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under leading pole tips in case of generator will increase either increase or decrease decrease None of these increase either increase or decrease decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 40% 5% 19% 10% 40% 5% 19% 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generators are usually designed to develop armature voltages not exceeding 650 V because of the limitations imposed by armature winding starters commutator field winding armature winding starters commutator field winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Starting torque. Speed regulation. Running Torque. Effiency. Starting torque. Speed regulation. Running Torque. Effiency. ANSWER DOWNLOAD EXAMIANS APP
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