Electrical Machines Hysteresis loop represents the area of copper loss hysteresis loss eddy current loss total iron losses copper loss hysteresis loss eddy current loss total iron losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is 340 A. 250 A. 570 A. 440 A. 340 A. 250 A. 570 A. 440 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the hysteresis loss. weight of the stator. eddy current loss. both of the above. hysteresis loss. weight of the stator. eddy current loss. both of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Autotransformer makes effective saving on copper and copper losses, when its transformation ratio is equal to very low less than one. greater than one. approx to one. very low less than one. greater than one. approx to one. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ IM with line frequency f1 and winding factor kw1 and kw2 for stator and rotor respectively the ratio of per phase stator winding emf E1 to per phase rotor winding emf E2 at standstill is given by E1 / E2 = f1kw1 / f2kw2. E1 / E2 = N1 / N2. E1 / E2 = 1. E1 / E2 = N1kw1 / N2kw2. E1 / E2 = f1kw1 / f2kw2. E1 / E2 = N1 / N2. E1 / E2 = 1. E1 / E2 = N1kw1 / N2kw2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally Level Compound. None of these. Differentical compound. Cummulative compound. Level Compound. None of these. Differentical compound. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
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