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? 90 V 900 V 0.9 V 9 V 90 V 900 V 0.9 V 9 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 90% load 25% load Zero load 50% load 90% load 25% load Zero load 50% load ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Voltage Frequency Power Time period Voltage Frequency Power Time period ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test on transformers is conducted to determine hysteresis losses core losses copper losses eddy current losses hysteresis losses core losses copper losses eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Does not work Has no losses and leakage reactance None of the listed here Has same number of primary and secondary turns Does not work Has no losses and leakage reactance None of the listed here Has same number of primary and secondary turns ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Is increased Remians unchanged None of the listed here Is decreased Is increased Remians unchanged None of the listed here Is decreased ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS