Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Hum Zoom Boo Magnetostriction Hum Zoom Boo Magnetostriction ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen hot because primary will carry heavy current hot because of heavy iron losses taking place in it due to high flux density cool as there is no secondary current none of above will happen ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Delta/Star Star/Star Delta/Delta Star/Delta Delta/Star Star/Star Delta/Delta Star/Delta ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as ringing hum zoom buzz ringing hum zoom buzz ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? High permeability High thermal conductivity Low hysteresis loss Mechanical strength High permeability High thermal conductivity Low hysteresis loss Mechanical strength 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 V 0.85 V 1.7 V 0 V 1 V 0.85 V 1.7 V ANSWER DOWNLOAD EXAMIANS APP
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