Transformers The iron core is used to ______of the transformer. None of the listed here Reduce core loss Increase the wight Provide tight magnetic coupling None of the listed here Reduce core loss Increase the wight Provide tight magnetic coupling ANSWER DOWNLOAD EXAMIANS APP
Transformers The highest voltage for transmitting electrical power in india is 400 kV 33 kV 132 kV 66 kV 400 kV 33 kV 132 kV 66 kV 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? 9 V 90 V 900 V 0.9 V 9 V 90 V 900 V 0.9 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 0.85 V 1.7 V 0 V 1 V 0.85 V 1.7 V 0 V 1 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High thermal conductivity Low hysteresis loss Mechanical strength High permeability High thermal conductivity Low hysteresis loss Mechanical strength High permeability ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 100 W 200 W None of the listed here 400 W 100 W 200 W None of the listed here 400 W ANSWER DOWNLOAD EXAMIANS APP
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