Electronic Principles The valence electron of a copper atom experiences what kind of attraction toward the nucleus? Strong Weak Neutral Impossible to say None of these Strong Weak Neutral Impossible to say None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time None of these The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage causes current to flow in two directions at the same time None of these The voltage reverses polarity periodically The voltage remains at one polarity but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.2 A 0.6 A None of these 0.4 A 0.3 A 0.2 A 0.6 A None of these 0.4 A 0.3 A 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? None of these 10 k Ohm 1 k Ohm 20 k Ohm 2 k Ohm None of these 10 k Ohm 1 k Ohm 20 k Ohm 2 k Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? 90 degree 0 degree 26.6 degree 180 degree None of these 90 degree 0 degree 26.6 degree 180 degree None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current? 7.75 µA 10.3 µA None of these 7.8 µA 14.8 µA 7.75 µA 10.3 µA None of these 7.8 µA 14.8 µA ANSWER DOWNLOAD EXAMIANS APP
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