Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 μH 2 mH 8 μH 4 μH 2 μH 2 mH 8 μH 4 μH ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Voltage device Main flux device Current device Power device Voltage device Main flux device Current device Power device ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test on transformers is conducted to determine copper losses eddy current losses core losses hysteresis losses copper losses eddy current losses core losses hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Delta/Delta Delta/Star Star/Delta Star/Star Delta/Delta Delta/Star Star/Delta Star/Star ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Power transformer Auto transformer Current transformer Potential transformer Power transformer Auto transformer Current transformer Potential transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Reduce core loss Increase the wight None of the listed here Provide tight magnetic coupling Reduce core loss Increase the wight None of the listed here Provide tight magnetic coupling ANSWER DOWNLOAD EXAMIANS APP
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