Transformers The amount of copper in the primary is _______that of secondary. About the same as Smaller than Greater than None of the listed here About the same as Smaller than Greater than None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 0.18 18 5.5 0.018 0.18 18 5.5 0.018 ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High silicon content High permeability All of the listed here Low hysteresis loss High silicon content High permeability All of the listed here Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same kVA rating same efficiency same polarity same number of turns on the secondary side. same kVA rating same efficiency same polarity same number of turns on the secondary side. ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current primary turns to secondary turns secondary terminal voltage to primary applied voltage secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 65% 95 % 75% 85% 65% 95 % 75% 85% ANSWER DOWNLOAD EXAMIANS APP
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