Electrical Machines Hysteresis loop represents the area of copper loss total iron losses hysteresis loss eddy current loss copper loss total iron losses hysteresis loss eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of stator rotating magnetic field (RMF) with respect to rotor is Nr S.Ns Ns Zero Nr S.Ns Ns Zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ IM in order to eliminate cogging the number of stator slots must be equal to number of rotor slots. an integral multiple of number of rotor slots. unequal to number of rotor slots and skewed in shape. either (B) or (C). equal to number of rotor slots. an integral multiple of number of rotor slots. unequal to number of rotor slots and skewed in shape. either (B) or (C). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Autotransformer makes effective saving on copper and copper losses, when its transformation ratio is equal to very low approx to one. greater than one. less than one. very low approx to one. greater than one. less than one. 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 the magnetic core of low reluctance. using transformer oil of better quality. using soft material for winding. increasing the number of turns. using the magnetic core of low reluctance. using transformer oil of better quality. using soft material for winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of parallel paths. number of commutator segments. number of pole pairs. number of poles. number of parallel paths. number of commutator segments. number of pole pairs. number of poles. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS