Transformers When secondary of a current transformer is open-circuited its iron core will be none of above will happen cool as there is no secondary current hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density none of above will happen cool as there is no secondary current hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density ANSWER DOWNLOAD EXAMIANS APP
Transformers The winding of the transformer with greater number of turns will be _____ Either high or low voltage winding Low voltage winding High voltage winding None of the listed here Either high or low voltage winding Low voltage winding High voltage winding None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers By laminating the core of a transformer, we decrease _____ Hysteresis loss Leakage reactance Copper loss Eddy current loss Hysteresis loss Leakage reactance Copper loss Eddy current loss 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 12 V 2,400 V 240 V 120 V 12 V 2,400 V 240 V 120 V ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 7.8 Ω 78 Ω 13 Ω 1.3 Ω 7.8 Ω 78 Ω 13 Ω 1.3 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 65% 95% 80% 50% 65% 95% 80% 50% ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS