Transformers When load on a transformer is decreased, ______loss is decreased Eddy current Hysteresis Friction Copper Eddy current Hysteresis Friction Copper ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary leakage flux links _____ None of the listed here Both primary and secondary windings Primary winding only Secondary winding only None of the listed here Both primary and secondary windings Primary winding only Secondary winding only ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Power factor of load Supply frequency Load current Both power factor and load current Power factor of load Supply frequency Load current Both power factor and load current ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will have zero efficiency at No load Half full load Full load None of the listed here No load Half full load Full load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Eddy losses are totally eliminated Saving in winding material Hysteresis losses are reduced Copper losses are negligible Eddy losses are totally eliminated Saving in winding material Hysteresis losses are reduced Copper losses are negligible ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 50% 95% 80% 65% 50% 95% 80% 65% ANSWER DOWNLOAD EXAMIANS APP
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