Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage secondary current to primary current primary turns to secondary turns secondary induced e.m.f. to primary induced e.m.f. secondary terminal voltage to primary applied voltage secondary current to primary current primary turns to secondary turns ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 4 μH 2 μH 8 μH 2 mH 4 μH 2 μH 8 μH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding in a transformer has more number of turns? Low voltage winding High voltage winding Secondary winding Primary winding Low voltage winding High voltage winding Secondary winding Primary winding ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Moisture Sludge Gases Odour Moisture Sludge Gases Odour ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High thermal conductivity High permeability Low hysteresis loss Mechanical strength High thermal conductivity High permeability Low hysteresis loss Mechanical strength ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases None of these load remains constant load on it decreases load on it increases None of these load remains constant load on it decreases ANSWER DOWNLOAD EXAMIANS APP
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