Electronic Principles What is one important thing transistors do? Regulate voltage Emit light Rectify line voltage None of these Amplify weak signals Regulate voltage Emit light Rectify line voltage None of these Amplify weak signals ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? None of these 38.74 V 30.4 V 37.4 V 35.4 V None of these 38.74 V 30.4 V 37.4 V 35.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Thevenin theorem replaces a complicated circuit facing a load by an None of these Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal current source and series resistor Ideal voltage source and series resistor None of these Ideal current source and parallel resistor Ideal voltage source and parallel resistor Ideal current source and series resistor Ideal voltage source and series resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: None of these All of these they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc None of these All of these they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 4.73 600 V None of these 24 V 0.4 V 4.73 600 V None of these 24 V 0.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold 22, 000 Ohm, 10% 220 Ohm, 5% None of these 22,000 Ohm, 5% 220 Ohm, 10% 22, 000 Ohm, 10% 220 Ohm, 5% None of these 22,000 Ohm, 5% 220 Ohm, 10% ANSWER DOWNLOAD EXAMIANS APP
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