Electronic Principles Which one of the following principles best describes the basic operation of a generator? Like magnetic poles attract; unlike poles repel None of these Current flowing through a conductor generates a magnetic field Like magnetic poles repel; unlike poles attract Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract; unlike poles repel None of these Current flowing through a conductor generates a magnetic field Like magnetic poles repel; unlike poles attract Current is induced in a conductor that is moving through a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Norton current, you have to Short the load resistor None of these Open the voltage source Open the load resistor Short the voltage source Short the load resistor None of these Open the voltage source Open the load resistor Short the voltage source ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? I = ER E = I2R None of these I = E/R E = PR I = ER E = I2R None of these I = E/R E = PR ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a pure inductor: ac current leads the voltage by 90 degree ac current and voltage are exactly in phase ac current lags the voltage by 90 degree None of these ac current is converted to dc voltage ac current leads the voltage by 90 degree ac current and voltage are exactly in phase ac current lags the voltage by 90 degree None of these ac current is converted to dc voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Regulate voltage Amplify weak signals Rectify line voltage Emit light None of these Regulate voltage Amplify weak signals Rectify line voltage Emit light None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs? P = E2/R P = I2R P = IE None of these I = P/E P = E2/R P = I2R P = IE None of these I = P/E ANSWER DOWNLOAD EXAMIANS APP
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