Transformers When secondary of a current transformer is open-circuited its iron core will be hot because primary will carry heavy current cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density none of above will happen hot because primary will carry heavy current cool as there is no secondary current hot because of heavy iron losses taking place in it due to high flux density none of above will happen ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Oil cooled Natural air cooled Water cooled None of the listed here Oil cooled Natural air cooled Water cooled None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Hysteresis Eddy current Copper Friction Hysteresis Eddy current Copper Friction ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which has core of stainless steel and winding of pure copper metal no losses and magnetic leakage interleaved primary and secondary windings a common core for its primary and secondary windings core of stainless steel and winding of pure copper metal no losses and magnetic leakage interleaved primary and secondary windings a common core for its primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Directly proportional to supply frequency None of the listed here Inversely proportional to supply frequency Inversely proportional to primary voltage Directly proportional to supply frequency None of the listed here Inversely proportional to supply frequency Inversely proportional to primary voltage ANSWER DOWNLOAD EXAMIANS APP
Transformers Which winding of the transformer has less cross-sectional area? Secondary winding Primary winding Low voltage winding High voltage winding Secondary winding Primary winding Low voltage winding High voltage winding ANSWER DOWNLOAD EXAMIANS APP
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