Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 0 Hz 1 Hz 50 Hz 5 Hz 0 Hz 1 Hz 50 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? Rotational loss Copper loss All of these Iron loss Rotational loss Copper loss All of these Iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on either of these. rotating magnetic field. None of these stationary magnetic field. either of these. rotating magnetic field. None of these stationary magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to high filed circuit resistance. all of these. zero or very low voltage supply. over load. high filed circuit resistance. all of these. zero or very low voltage supply. over load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T∝ V² T ∝ 1/V T ∝ V T ∝ 1/V² T∝ V² T ∝ 1/V T ∝ V T ∝ 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of main field flux distribution is? triangular flat tapped or trapezoidal peaky in nature saddle shape triangular flat tapped or trapezoidal peaky in nature saddle shape ANSWER DOWNLOAD EXAMIANS APP
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