Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field None of these Current is induced in a conductor that is moving through a magnetic field Like magnetic poles attract, while unlike poles repel Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field 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 I = P/E P = IE None of these P = E2/R P = I2R I = P/E P = IE None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A basic capacitor is composed of: two coils separated by a dielectric two coils separated by a conductor two dielectrics separated by a conductor two conductors separated by a dielectric None of these two coils separated by a dielectric two coils separated by a conductor two dielectrics separated by a conductor two conductors separated by a dielectric None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 60-W light bulb that is operating at 120 V? 0.5A 7200 A 180 A None of these 0.083333333333333 0.5A 7200 A 180 A None of these 0.083333333333333 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RC circuit? The current always has the same amplitude and phase for every part of the circuit None of these The total current is equal to the sum of the currents for the resistance and capacitance The total current. is greater than the sum of the currents for the resistance and capacitance The total current is less than the sum of the currents for the resistance and capacitance The current always has the same amplitude and phase for every part of the circuit None of these The total current is equal to the sum of the currents for the resistance and capacitance The total current. is greater than the sum of the currents for the resistance and capacitance The total current is less than the sum of the currents for the resistance and capacitance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a temporary magnet an artificial magnet None of these a natural magnet a paramagnetic alloy a temporary magnet an artificial magnet None of these a natural magnet a paramagnetic alloy ANSWER DOWNLOAD EXAMIANS APP
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