Electronic Principles What is one important thing transistors do? None of these Rectify line voltage Emit light Amplify weak signals Regulate voltage None of these Rectify line voltage Emit light Amplify weak signals Regulate voltage 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? Flux density Magnetomotive force None of these Reluctance Number of lines of force Flux density Magnetomotive force None of these Reluctance Number of lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: 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 None of these their waveforms are both ac or both dc 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 None of these their waveforms are both ac or both dc ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? All of these Current leads the voltage through a resistor Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these All of these Current leads the voltage through a resistor Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these 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 220 Ohm, 10% 22,000 Ohm, 5% 220 Ohm, 5% None of these 22, 000 Ohm, 10% 220 Ohm, 10% 22,000 Ohm, 5% 220 Ohm, 5% None of these 22, 000 Ohm, 10% ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? The total current is less than the sum of the currents through the resistance and inductance The total current is equal to the sum of the currents through the resistance and inductance None of these The total current leads the total voltage by less than 90 The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents through the resistance and inductance The total current is equal to the sum of the currents through the resistance and inductance None of these The total current leads the total voltage by less than 90 The current always has the same amplitude and phase for every part of the circuit ANSWER DOWNLOAD EXAMIANS APP
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