Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Auto transformer Current transformer Potential transformer Step-up transformer Auto transformer Current transformer Potential transformer Step-up transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Negative voltage regulation is indicative that the load is capacitive only inductive only inductive or resistive None of these capacitive only inductive only inductive or resistive None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure insulation resistance core loss total loss copper loss insulation resistance core loss total loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers If 25 W of power are applied to the primary of an ideal transformer with a turns ratio of 10, the power delivered to the secondary load is 2.5 W 25 W 0 W 250 W 2.5 W 25 W 0 W 250 W ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Current efficiency Energy efficiency None of the listed here Power efficiency Current efficiency Energy efficiency None of the listed here Power efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is None of these less than one great than one approximately equal to one None of these less than one great than one approximately equal to one ANSWER DOWNLOAD EXAMIANS APP
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