Transformers The primary and secondary windings are wound on the top of each other in order to reduce ______ Copper losses Leakage reactance Winding resistance Iron losses Copper losses Leakage reactance Winding resistance Iron losses ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged None of the listed here Is increased Is decreased Remians unchanged None of the listed here Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Magnetising current is abnormally high Primary reactance is too much increased None of the listed here Permeability of core is increased Magnetising current is abnormally high Primary reactance is too much increased None of the listed here Permeability of core is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. 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 Reduce core loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ Primary winding only Secondary winding only Both primary and secondary windings None of the listed here Primary winding only Secondary winding only Both primary and secondary windings None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The turns ratio required to match an 80 source to a 320 load is 80 4 2 20 80 4 2 20 ANSWER DOWNLOAD EXAMIANS APP
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