Transformers A certain transformer has 400 turns in the primary winding and 2,000 turns in the secondary winding. The turns ratio is 5 0.2 0.4 25 5 0.2 0.4 25 ANSWER DOWNLOAD EXAMIANS APP
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 1.3 Ω 7.8 Ω 78 Ω 13 Ω 1.3 Ω 7.8 Ω 78 Ω 13 Ω 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? 0 W 14.1 W 111.5 W 1,020 W 0 W 14.1 W 111.5 W 1,020 W ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Star Star/Delta Delta/Star Delta/Delta Star/Star Star/Delta Delta/Star Delta/Delta ANSWER DOWNLOAD EXAMIANS APP
Transformers The effect of leakage flux in a transformer is to ______ Cause voltage drop in the windings Decreases copper losses None of the listed here Increase copper losses Cause voltage drop in the windings Decreases copper losses None of the listed here Increase copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Energy efficiency None of the listed here Power efficiency Current efficiency Energy efficiency None of the listed here Power efficiency Current efficiency ANSWER DOWNLOAD EXAMIANS APP
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