Transformers When load on a transformer is decreased, ______loss is decreased Friction Hysteresis Eddy current Copper Friction Hysteresis Eddy current Copper ANSWER DOWNLOAD EXAMIANS APP
Transformers Harmonics in transformer result in magnetic interference with communication circuits All of the listed here increased core losses increased I2R losses magnetic interference with communication circuits All of the listed here increased core losses increased I2R losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has full load copper loss of 400 W. The copper loss at half full load will be _____. 100 W 200 W None of the listed here 400 W 100 W 200 W None of the listed here 400 W ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ 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 Magnetising current is abnormally high ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine all-day efficiency None of these temperature stray losses all-day efficiency None of these temperature stray losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Power efficiency None of the listed here Current efficiency Energy efficiency Power efficiency None of the listed here Current efficiency Energy efficiency ANSWER DOWNLOAD EXAMIANS APP
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