Transformers The dielectric strength of transformer oil is expected to be lkV 33 kV 100 kV 330 kV lkV 33 kV 100 kV 330 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Reluctance of magnetic path is decreased Magnetising current is greatly increased Hysteresis loss is decreased Eddy current is increased Reluctance of magnetic path is decreased Magnetising current is greatly increased Hysteresis loss is decreased Eddy current is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding in a transformer has more number of turns? High voltage winding Low voltage winding Primary winding Secondary winding High voltage winding Low voltage winding Primary winding Secondary winding ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 0.9 V 90 V 9 V 900 V 0.9 V 90 V 9 V 900 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are somewhat smaller much smaller much higher about the same somewhat smaller much smaller much higher about the same ANSWER DOWNLOAD EXAMIANS APP
Transformers The path of the magnetic flux in transformer should have high resistance low resistance high reluctance low reactance high resistance low resistance high reluctance low reactance ANSWER DOWNLOAD EXAMIANS APP