Transformers The secondary of a current transformer is always short-circuited under operating conditions because it is safe to human beings protects the primary circuit avoids core saturation and high voltage induction None of these is safe to human beings protects the primary circuit avoids core saturation and high voltage induction None of these ANSWER DOWNLOAD EXAMIANS APP
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? 0.96 0.4 4 9.6 0.96 0.4 4 9.6 ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which has interleaved primary and secondary windings core of stainless steel and winding of pure copper metal no losses and magnetic leakage a common core for its primary and secondary windings interleaved primary and secondary windings core of stainless steel and winding of pure copper metal no losses and magnetic leakage a common core for its primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers In an auto transformer, the primary and secondary are _____ coupled. Only magnetically None of the listed here Only electrically Magnetically as well as electrically Only magnetically None of the listed here Only electrically Magnetically as well as electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 65% 85% 75% 95 % 65% 85% 75% 95 % ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. Electrically and magnetically None of the listed here Magnetically Electrically Electrically and magnetically None of the listed here Magnetically Electrically ANSWER DOWNLOAD EXAMIANS APP
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