Transformers The path of the magnetic flux in transformer should have high resistance low resistance low reactance high reluctance high resistance low resistance low reactance high reluctance ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 0 V 1.7 V 0.85 V 1 V 0 V 1.7 V 0.85 V 1 V ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Air cooled None of the listed here Water cooled Oil cooled Air cooled None of the listed here Water cooled Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load remains constant load on it decreases load on it increases None of these load remains constant load on it decreases load on it increases None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual inductance when k = 0.65, L1 = 2 H, and L2 = 5 H is 8 μH 2 μH 4 μH 2 mH 8 μH 2 μH 4 μH 2 mH ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is less than one great than one approximately equal to one None of these less than one great than one approximately equal to one None of these ANSWER DOWNLOAD EXAMIANS APP
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