Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Magnetostriction Hum Boo Zoom Magnetostriction Hum Boo Zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers Distribution transformers are generally designed for maximum efficiency around 25% load Zero load 90% load 50% load 25% load Zero load 90% load 50% load ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Inversely proportional to primary voltage Directly proportional to supply frequency Inversely proportional to supply frequency None of the listed here Inversely proportional to primary voltage Directly proportional to supply frequency Inversely proportional to supply frequency None of the listed here 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 12 V 2,400 V 240 V 120 V 12 V 2,400 V 240 V 120 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss efficiency copper loss magnetising current magnetising current and loss core loss efficiency copper loss magnetising current magnetising current and loss ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Both power factor and load current Load current Supply frequency Power factor of load Both power factor and load current Load current Supply frequency Power factor of load ANSWER DOWNLOAD EXAMIANS APP
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