Electrical Machines In a resistance split phase motor, what is the range of torque angle? 90° 0° 25° to 30° 70° to 85° 90° 0° 25° to 30° 70° to 85° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are same. changes. different. none of above. same. changes. different. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Oil is provided in an oil filled transformer for insulating. cooling. both cooling and insulation. lubrication. insulating. cooling. both cooling and insulation. lubrication. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines, the interpoles are provided to make commutation spark less. both (B) and (C). to counteract demagnetizing effect of armature mmf in commutating zone. to counteract the reactance voltage and the cross-magnetizi to make commutation spark less. both (B) and (C). to counteract demagnetizing effect of armature mmf in commutating zone. to counteract the reactance voltage and the cross-magnetizi ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by f / s. sf. sf / 2. s2. f / s. sf. sf / 2. s2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? armature copper loss eddy current loss shunt field copper loss hysteresis loss armature copper loss eddy current loss shunt field copper loss hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
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