Transformers The approximate efficiency of a large transformer is 50% 95% 65% 80% 50% 95% 65% 80% ANSWER DOWNLOAD EXAMIANS APP
Transformers Primary winding of a transformer is always a low voltage winding None of these could either be a low voltage or high voltage winding is always a high voltage winding is always a low voltage winding None of these could either be a low voltage or high voltage winding is always a high voltage 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? 900 V 9 V 90 V 0.9 V 900 V 9 V 90 V 0.9 V ANSWER DOWNLOAD EXAMIANS APP
Transformers An isolation transformer has primary to secondady turns ratio of Can be any ratio 2:1 1:1 1:2 Can be any ratio 2:1 1:1 1:2 ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Leakage reactance Winding resistance Iron losses Copper losses Leakage reactance Winding resistance Iron losses Copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load primary current is about ______of full load primary current. 30-40% 15-30% Above 40% 3-5% 30-40% 15-30% Above 40% 3-5% ANSWER DOWNLOAD EXAMIANS APP
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