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 200 mA None of these 300 mA 7.8 mA 208 mA 200 mA None of these 300 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The saturation point is approximately the same as upper end of the load line lower end of the load line infinity cutoff point None of these upper end of the load line lower end of the load line infinity cutoff point None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If the base supply voltage increases, the Q point moves up nowhere down off the load line None of these up nowhere down off the load line None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit? Number of lines of force None of these Flux density Magnetomotive force Reluctance Number of lines of force None of these Flux density Magnetomotive force Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature 0oC Increases None of these Decreases Stays the same 0oC Increases None of these Decreases Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source? 0.151 mA 0.995 mA 157 raA None of these 2.02 A 0.151 mA 0.995 mA 157 raA None of these 2.02 A ANSWER DOWNLOAD EXAMIANS APP
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