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 but changes value periodically The voltage reverses polarity periodically The voltage remains at one polarity and at a steady level None of these The voltage causes current to flow in two directions at the same time The voltage remains at one polarity but changes value periodically The voltage reverses polarity periodically The voltage remains at one polarity and at a steady level None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an Ideal voltage source and parallel resistor Ideal voltage source and series resistor Ideal current source and series resistor None of these Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal voltage source and series resistor Ideal current source and series resistor None of these Ideal current source and parallel resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Emit light Rectify line voltage None of these Amplify weak signals Regulate voltage Emit light Rectify line voltage None of these Amplify weak signals Regulate voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? R = E2/P None of these I = P/E P = PR P = E2/R R = E2/P None of these I = P/E P = PR P = E2/R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage? 170 V 100 V None of these 120 V 180 V 170 V 100 V None of these 120 V 180 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? None of these 89.3 ohm 77.7 ohm 224 ohm 88.8 ohm None of these 89.3 ohm 77.7 ohm 224 ohm 88.8 ohm ANSWER DOWNLOAD EXAMIANS APP
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