Electrical Machines In dc motors, under leading pole tips flux density will--------? None of these decrease either increase or decrease increase None of these decrease either increase or decrease increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 1 Hz 0 Hz 5 Hz 50 Hz 1 Hz 0 Hz 5 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Addition of 0.3 % to 4.5 % silicon to iron reduces the saturation magnetization. increases the hysteresis loss. increases the electrical resistivity of iron. None of these reduces the saturation magnetization. increases the hysteresis loss. increases the electrical resistivity of iron. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by increasing the number of turns. using transformer oil of better quality. using soft material for winding. using the magnetic core of low reluctance. increasing the number of turns. using transformer oil of better quality. using soft material for winding. using the magnetic core of low reluctance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft torque of a dc motor is less than the electromagnetic torque because of ohmic losses. hysteresis losses. mechanical losses. eddy current losses. ohmic losses. hysteresis losses. mechanical losses. eddy current losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? In order to get saturated. In order to not to get saturated. In order to get more flux. All of these In order to get saturated. In order to not to get saturated. In order to get more flux. All of these ANSWER DOWNLOAD EXAMIANS APP
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