Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 4 μH 8 μH 2 μH 2 mH 4 μH 8 μH 2 μH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer routine efficiency depends upon Power factor of load Both power factor and load current Supply frequency Load current Power factor of load Both power factor and load current Supply frequency Load current ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is great than one less than one approximately equal to one None of these great than one less than one approximately equal to one None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary terminal voltage to primary applied voltage primary turns to secondary turns secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage primary turns to secondary turns secondary current to primary current secondary induced e.m.f. to primary induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Transformers In the short circuit test on a transformer, we generally short circuit ______ High voltage winding Low voltage winding Either low or high voltage winding None of the listed here High voltage winding Low voltage winding Either low or high voltage winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Delta/Star Star/Delta Star/Star Delta/Delta Delta/Star Star/Delta Star/Star Delta/Delta ANSWER DOWNLOAD EXAMIANS APP
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