Transformers The maximum flux produced in the core of a transformer is ______ Inversely proportional to supply frequency Directly proportional to supply frequency Inversely proportional to primary voltage None of the listed here Inversely proportional to supply frequency Directly proportional to supply frequency Inversely proportional to primary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 0.25 kVA 8 kVA 4 kVA 16 kVA 0.25 kVA 8 kVA 4 kVA 16 kVA 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 a common core for its primary and secondary windings interleaved primary and secondary windings core of stainless steel and winding of pure copper metal no losses and magnetic leakage a common core for its primary and secondary windings interleaved primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases None of these load remains constant load on it decreases load on it increases None of these load remains constant load on it decreases ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Copper losses are negligible Hysteresis losses are reduced Eddy losses are totally eliminated Saving in winding material Copper losses are negligible Hysteresis losses are reduced Eddy losses are totally eliminated Saving in winding material ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 25 per cent 98 per cent 50 per cent 100 per cent 25 per cent 98 per cent 50 per cent 100 per cent ANSWER DOWNLOAD EXAMIANS APP
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