Transformers Open circuit test on transformers is conducted to determine eddy current losses core losses hysteresis losses copper losses eddy current losses core losses hysteresis losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A step up transformer increases Voltage Current Power Frequency Voltage Current Power Frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Primary reactance is too much increased Permeability of core is increased None of the listed here Magnetising current is abnormally high Primary reactance is too much increased Permeability of core is increased None of the listed here Magnetising current is abnormally high ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Load current Power factor of load Supply frequency Both power factor and load current Load current Power factor of load Supply frequency Both power factor and load current 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 0.9 V 9 V 90 V 900 V 0.9 V 9 V 90 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Boo Hum Magnetostriction Zoom Boo Hum Magnetostriction Zoom ANSWER DOWNLOAD EXAMIANS APP
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