Transformers A transformer has a 1:6 turns ratio and a secondary coil load resistance of 470 . The load resistance as seen by the source is 7.8 Ω 13 Ω 78 Ω 1.3 Ω 7.8 Ω 13 Ω 78 Ω 1.3 Ω 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 An ideal transformer is one which has interleaved primary and secondary windings no losses and magnetic leakage core of stainless steel and winding of pure copper metal a common core for its primary and secondary windings interleaved primary and secondary windings no losses and magnetic leakage core of stainless steel and winding of pure copper metal a common core for its primary and secondary windings ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary and secondary of a transformer are ______ coupled. None of the listed here Electrically Magnetically Electrically and magnetically None of the listed here Electrically Magnetically Electrically and magnetically ANSWER DOWNLOAD EXAMIANS APP
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 400 W 50 W 100 W 200 W 400 W 50 W 100 W 200 W ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ None of the listed here Increase copper losses Decreases copper losses Cause voltage drop in the windings None of the listed here Increase copper losses Decreases copper losses Cause voltage drop in the windings ANSWER DOWNLOAD EXAMIANS APP
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