Transformers In a transformer, leakage flux Is minimised by interleaving the primary and secondary windings Helps in transfer of energy Is negligible at full load Produces mutually induced emf Is minimised by interleaving the primary and secondary windings Helps in transfer of energy Is negligible at full load Produces mutually induced emf ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as ringing hum buzz zoom ringing hum buzz zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 2 μH 2 mH 4 μH 8 μH 2 μH 2 mH 4 μH 8 μH ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ None of the listed here Primary winding only Both primary and secondary windings Secondary winding only None of the listed here Primary winding only Both primary and secondary windings Secondary winding only ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine core loss magnetising current and loss efficiency magnetising current copper loss core loss magnetising current and loss efficiency magnetising current copper loss ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the coefficient of coupling for a transformer in which 4% of the total flux generated in the primary does not pass through the secondary? 0.4 4 9.6 0.96 0.4 4 9.6 0.96 ANSWER DOWNLOAD EXAMIANS APP
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