Electronic Principles Most AC power is obtained from: None of these generators oscillators lightning batteries None of these generators oscillators lightning batteries ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage? 12 V None of these 24 V 30 V 18 V 12 V None of these 24 V 30 V 18 V 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? Magnetomotive force Number of lines of force Flux density Reluctance None of these Magnetomotive force Number of lines of force Flux density Reluctance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 40 V None of these 36 V 0 V 60 V 40 V None of these 36 V 0 V 60 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage causes current to flow in two directions at the same time The voltage remains at one polarity and at a steady level None of these The voltage remains at one polarity but changes value periodically The voltage reverses polarity periodically The voltage causes current to flow in two directions at the same time The voltage remains at one polarity and at a steady level None of these The voltage remains at one polarity but changes value periodically The voltage reverses polarity periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff? 1 k Ohm 10 k Ohm 2 k Ohm 20 k Ohm None of these 1 k Ohm 10 k Ohm 2 k Ohm 20 k Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
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