Transformers The efficiency of a transformer will be maximum when ______ Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ None of the listed here Is decreased Remains unchanged Is increased None of the listed here Is decreased Remains unchanged Is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be open shorted fused switched open shorted fused switched ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer operates poorly at very low frequencies because _____ Magnetising current is abnormally high Permeability of core is increased Primary reactance is too much increased None of the listed here Magnetising current is abnormally high Permeability of core is increased Primary reactance is too much increased None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The amount of copper in the primary is _______that of secondary. About the same as None of the listed here Greater than Smaller than About the same as None of the listed here Greater than Smaller than ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Load current Power factor of load Supply frequency Both power factor and load current Load current Power factor of load Supply frequency Both power factor and load current ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS