Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Step-up transformer Auto transformer Potential transformer Current transformer Step-up transformer Auto transformer Potential transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 240 V 12 V 2,400 V 120 V 240 V 12 V 2,400 V 120 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Copper losses Iron losses Friction losses Total losses Copper losses Iron losses Friction losses Total losses ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer does not posses ______changing property. Impedance Current Voltage Power Impedance Current Voltage Power ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary coil of a transformer is connected to a 60 V ac source. The secondary coil is connected to a 330 load. The turns ratio is 3:1. What is the secondary voltage? 20 V 2 V 18 V 180 V 20 V 2 V 18 V 180 V ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine magnetising current magnetising current and loss efficiency of the transformer copper loss magnetising current magnetising current and loss efficiency of the transformer copper loss ANSWER DOWNLOAD EXAMIANS APP
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