Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 88 V 8.8 V 880 V 8,800 V 88 V 8.8 V 880 V 8,800 V 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? 4 0.96 9.6 0.4 4 0.96 9.6 0.4 ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are somewhat smaller much higher much smaller about the same somewhat smaller much higher much smaller about the same ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when None of these load on it decreases load on it increases load remains constant None of these load on it decreases load on it increases load remains constant ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are hysteresis and eddy current losses friction and windage losses magnetic losses copper losses hysteresis and eddy current losses friction and windage losses magnetic losses copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer is always made on ______ None of the listed here Either low or high voltage winding High voltage winding Low voltage winding None of the listed here Either low or high voltage winding High voltage winding Low voltage winding ANSWER DOWNLOAD EXAMIANS APP
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