Electronic Principles What is one important thing transistors do? Regulate voltage Emit light Amplify weak signals None of these Rectify line voltage Regulate voltage Emit light Amplify weak signals None of these Rectify line voltage 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 30 V 24 V 18 V 12 V None of these 30 V 24 V 18 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an 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 Ideal voltage source and parallel resistor Ideal voltage source and series resistor Ideal current source and series resistor None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like a battery None of these an insulator a conductor a piece of copper wire a battery None of these an insulator a conductor a piece of copper wire ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately applies to the frequency of a waveform? None of these The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The actual frequency of a sine waveform is 1.41 times the working frequency The higher the amplitude of a waveform, the higher its frequency None of these The longer the period of a waveform, the lower its frequency Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz The actual frequency of a sine waveform is 1.41 times the working frequency The higher the amplitude of a waveform, the higher its frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best applies to a series RLC circuit? All of these The voltage waveform for each component always has the same amplitude and phase as the applied voltage The current waveform for each component always has the same amplitude and phase as the applied current The sum of the current is always less than the applied current None of these All of these The voltage waveform for each component always has the same amplitude and phase as the applied voltage The current waveform for each component always has the same amplitude and phase as the applied current The sum of the current is always less than the applied current None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS