Electrical Machines In DC machine torque is proportional to which of the following? None of these armature current(Ia) both A and B flux(φ) None of these armature current(Ia) both A and B flux(φ) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is lagging power factor leading power factor None of these unity power factor lagging power factor leading power factor None of these unity power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor electromagnetic power varies inversely as applied voltage directly as square of applied voltage directly as applied voltage None of these inversely as applied voltage directly as square of applied voltage directly as applied voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For P pole machine relation between electrical degrees and mechanical degrees is θelec = θmech θelec = 4/P*θmech θelec = P/2*θmech θelec = 2/P*θmech θelec = θmech θelec = 4/P*θmech θelec = P/2*θmech θelec = 2/P*θmech ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 115°. about 75°. 0°. 90°. about 115°. about 75°. 0°. 90°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a induction motor. DC motor. switched reluctance motor. variable reluctance motor. induction motor. DC motor. switched reluctance motor. variable reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
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