Transformers A transformer has 200 W as iron loss at full load. The iron loss at full load. The iron loss at half full load will be 100 W 400 W 50 W 200 W 100 W 400 W 50 W 200 W ANSWER DOWNLOAD EXAMIANS APP
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 all day efficiency of a transformer is ______ the commercial efficiency. Less than The same as None of the listed here More than Less than The same as None of the listed here More than ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Directly proportional to supply frequency Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here Directly proportional to supply frequency Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is increased, the eddy current _____ None of the listed here Is decreased Is increased Remains unchanged None of the listed here Is decreased Is increased Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. Square of thickness of core lamination The supply frequency The flux density in the core Thickness of core lamination Square of thickness of core lamination The supply frequency The flux density in the core Thickness of core lamination ANSWER DOWNLOAD EXAMIANS APP
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