Transformers The approximate efficiency of a large transformer is 50% 80% 65% 95% 50% 80% 65% 95% ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases None of these load on it decreases load remains constant load on it increases None of these load on it decreases load remains constant ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. Thickness of core lamination The flux density in the core The supply frequency Square of thickness of core lamination Thickness of core lamination The flux density in the core The supply frequency Square of thickness of core lamination ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be 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 none of above will happen cool as there is no secondary current hot because primary will carry heavy current ANSWER DOWNLOAD EXAMIANS APP
Transformers A no-load test is performed on a transformer to determine copper loss efficiency core loss magnetising current magnetising current and loss copper loss efficiency core loss magnetising current magnetising current and loss ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues? 14.1 W 0 W 1,020 W 111.5 W 14.1 W 0 W 1,020 W 111.5 W ANSWER DOWNLOAD EXAMIANS APP
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