Transformers An isolation transformer has primary to secondady turns ratio of 2:1 Can be any ratio 1:2 1:1 2:1 Can be any ratio 1:2 1:1 ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer is smallest? 2kVA, 400 Hz 2kVA, 500 Hz 2kVA, 200 Hz 2kVA, 50 Hz 2kVA, 400 Hz 2kVA, 500 Hz 2kVA, 200 Hz 2kVA, 50 Hz 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 1 V 0.85 V 0 V 1.7 V 1 V 0.85 V 0 V 1.7 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Total losses Copper losses Friction losses Iron losses Total losses Copper losses Friction losses Iron losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is approximately equal to one less than one None of these great than one approximately equal to one less than one None of these great than one ANSWER DOWNLOAD EXAMIANS APP
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