Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to zero. unity. two. infinity. zero. unity. two. infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives eddy current loss hysteresis loss both 1and 2 copper loss eddy current loss hysteresis loss both 1and 2 copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce eddy current loss. friction and windage loss. hysteresis loss. copper loss. eddy current loss. friction and windage loss. hysteresis loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous speed of an induction motor will be increased by speed can not be increased. increasing number of poles. increasing of frequency. decreasing of frequency. speed can not be increased. increasing number of poles. increasing of frequency. decreasing of frequency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of any electrical motor is taken from the Motor frame. Coupling mounted on the shaft. Field. Armature. Motor frame. Coupling mounted on the shaft. Field. Armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 192 V 768 V 96 V 384 V 192 V 768 V 96 V 384 V ANSWER DOWNLOAD EXAMIANS APP
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