Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 2,400 V 240 V 120 V 12 V 2,400 V 240 V 120 V 12 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A step up transformer increases Power Voltage Current Frequency Power Voltage Current Frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Star Star/Delta Delta/Star Delta/Delta Star/Star Star/Delta Delta/Star Delta/Delta ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ Is decreased Remains unchanged None of the listed here Is increased Is decreased Remains unchanged None of the listed here Is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The hum in a transformer is mainly attributed to oil in the transformer load changes mechanical vibrations magnetostriction oil in the transformer load changes mechanical vibrations magnetostriction ANSWER DOWNLOAD EXAMIANS APP
Transformers The no load ratio of a 50 Hz single phase transformer is 6000/250 V. The maximum flux in the core is 0.06 Wb. What is the number of primary turns? 900 450 350 210 900 450 350 210 ANSWER DOWNLOAD EXAMIANS APP
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