Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? either increase or decrease increase None of these decrease either increase or decrease increase None of these decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? Iron loss All of these Copper loss Rotational loss Iron loss All of these Copper loss Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 50Hz 2HZ 2.5Hz 1 Hz 50Hz 2HZ 2.5Hz 1 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator on no-load, the air gap flux distribution in space is flat topped. sinusoidal. triangular. pulsating. flat topped. sinusoidal. triangular. pulsating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of self or mutual induction. electromagnetic induction. mutual induction. self induction. self or mutual induction. electromagnetic induction. mutual induction. self induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ induction motor power factor at starting is high as compared to that while running. none of them. power factor at starting in the same as that while running. power factor at starting is low as compared to that while running. power factor at starting is high as compared to that while running. none of them. power factor at starting in the same as that while running. power factor at starting is low as compared to that while running. ANSWER DOWNLOAD EXAMIANS APP
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