Transformers Two things which are same for primary and secondary of transformer are ______ None of the listed here Currents and induced voltages Ampere turns and voltage per turns Resistance and leakage reactances None of the listed here Currents and induced voltages Ampere turns and voltage per turns Resistance and leakage reactances ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is ______ the commercial efficiency. None of the listed here Less than The same as More than None of the listed here Less than The same as More than ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding Resistance of the two winding are equal None of the listed here Copper loss is equal to constant loss Leakage reactance of the two winding Resistance of the two winding are equal 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 9 V 90 V 900 V 0.9 V 9 V 90 V 900 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 80% 95% 65% 50% 80% 95% 65% 50% ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine hysteresis losses copper losses eddy current losses core losses hysteresis losses copper losses eddy current losses core losses ANSWER DOWNLOAD EXAMIANS APP
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