Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Star Star/Delta Delta/Star Delta/Delta Star/Star Star/Delta Delta/Star Delta/Delta 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? 90 V 900 V 0.9 V 9 V 90 V 900 V 0.9 V 9 V 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 The approximate efficiency of a large transformer is 50% 80% 95% 65% 50% 80% 95% 65% 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 0.75 V 0 V 6 V 48 V 0.75 V 0 V 6 V 48 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss magnetising current copper loss magnetising current and loss efficiency core loss magnetising current copper loss magnetising current and loss efficiency ANSWER DOWNLOAD EXAMIANS APP
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