Transformers What is the approximate efficiency of large transformers? 65% 75% 95 % 85% 65% 75% 95 % 85% ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is one-fourth the primary current one-fourth the primary current and equal to the primary current four times the primary current equal to the primary current one-fourth the primary current one-fourth the primary current and equal to the primary current four times the primary current equal to the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers Open circuit test on transformers is conducted to determine eddy current losses copper losses core losses hysteresis losses eddy current losses copper losses core losses hysteresis losses 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 We can find _______of the transformer with open circuit test. Copper losses Total equivalent resistance Turn ratio Total equivalent leakage reactance Copper losses Total equivalent resistance Turn ratio Total equivalent leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V? 0.9 V 90 V 9 V 900 V 0.9 V 90 V 9 V 900 V ANSWER DOWNLOAD EXAMIANS APP
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