Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 4 9.6 0.96 0.4 4 9.6 0.96 0.4 ANSWER DOWNLOAD EXAMIANS APP
Transformers In an auto transformer, the primary and secondary are _____ coupled. Magnetically as well as electrically None of the listed here Only magnetically Only electrically Magnetically as well as electrically None of the listed here Only magnetically Only electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Iron loss at no load Cu loss at no load None of the listed here Cu loss at any desire load Iron loss at no load Cu loss at no load None of the listed here Cu loss at any desire load ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. primary turns to secondary turns secondary terminal voltage to primary applied voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ Is decreased Is increased Remains unchanged None of the listed here Is decreased Is increased Remains unchanged None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Star Delta/Delta Delta/Star Star/Delta Star/Star Delta/Delta Delta/Star Star/Delta ANSWER DOWNLOAD EXAMIANS APP
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