Transformers In an auto transformer, the primary and secondary are _____ coupled. Only magnetically None of the listed here Magnetically as well as electrically Only electrically Only magnetically None of the listed here Magnetically as well as electrically Only electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is approximately equal to one None of these less than one great than one approximately equal to one None of these less than one great than one ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 180 V 2 V 18 V 20 V 180 V 2 V 18 V 20 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as buzz ringing hum zoom buzz ringing hum zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Mutual induction Static induction Dynamic induction Self induction Mutual induction Static induction Dynamic induction Self induction ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Power Time period Frequency Voltage Power Time period Frequency Voltage ANSWER DOWNLOAD EXAMIANS APP
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