Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 0 V 6 V 48 V 0.75 V 0 V 6 V 48 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Eddy losses are totally eliminated Copper losses are negligible Hysteresis losses are reduced Saving in winding material Eddy losses are totally eliminated Copper losses are negligible Hysteresis losses are reduced Saving in winding material ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine copper loss efficiency core loss magnetising current and loss magnetising current copper loss efficiency core loss magnetising current and loss magnetising current ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it decreases load on it increases load remains constant None of these load on it decreases load on it increases load remains constant None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following property is not necessarily desirable in the material for transformer core? Mechanical strength High permeability High thermal conductivity Low hysteresis loss Mechanical strength High permeability High thermal conductivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary None of these through cooling coil by the flux through air None of these through cooling coil by the flux through air ANSWER DOWNLOAD EXAMIANS APP
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