Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of more than 15 A 15 A less than 15 A None of these more than 15 A 15 A less than 15 A None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The hum in a transformer is mainly attributed to mechanical vibrations oil in the transformer load changes magnetostriction mechanical vibrations oil in the transformer load changes magnetostriction ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 8 kVA 0.25 kVA 4 kVA 16 kVA 8 kVA 0.25 kVA 4 kVA 16 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine core losses eddy current losses hysteresis losses copper losses core losses eddy current losses hysteresis losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 48 V 0 V 6 V 0.75 V 48 V 0 V 6 V 0.75 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. Above 40% 15-30% 3-5% 30-40% Above 40% 15-30% 3-5% 30-40% ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS