Transformers The efficiency of a transformer will be maximum when ______ 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 Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 50 W 200 W 400 W 100 W 50 W 200 W 400 W 100 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 3000 kVA 500 kVA 250 kVA 1000 kVA 3000 kVA 500 kVA 250 kVA 1000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of less than 15 A more than 15 A 15 A None of these less than 15 A more than 15 A 15 A None of these 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 The path of the magnetic flux in transformer should have low reactance high reluctance low resistance high resistance low reactance high reluctance low resistance high resistance ANSWER DOWNLOAD EXAMIANS APP
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