Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 100 W 400 W 200 W 50 W 100 W 400 W 200 W 50 W ANSWER DOWNLOAD EXAMIANS APP
Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 240 V 2,400 V 120 V 12 V 240 V 2,400 V 120 V 12 V ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure total loss insulation resistance core loss copper loss total loss insulation resistance core loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 25% load Zero load 50% load 90% load 25% load Zero load 50% load 90% load ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. None of the listed here Electrically Magnetically Electrically and magnetically None of the listed here Electrically Magnetically Electrically and magnetically ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Current transformer Auto transformer Potential transformer Power transformer Current transformer Auto transformer Potential transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
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