Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 9 81 None of these 85 6 9 81 None of these 85 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? 208 mA None of these 300 mA 7.8 mA 200 mA 208 mA None of these 300 mA 7.8 mA 200 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following kinds of materials has the highest permeability? All of these A ferromagnetic material None of these A paramagnetic material A diamagnetic material All of these A ferromagnetic material None of these A paramagnetic material A diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point up off the load line None of these nowhere down up off the load line None of these nowhere down ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it? 64 W 3 W None of these 122 W 6 W 64 W 3 W None of these 122 W 6 W ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 0.4 V 4.73 24 V 600 V None of these 0.4 V 4.73 24 V 600 V None of these ANSWER DOWNLOAD EXAMIANS APP
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