Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? None of these Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel, while unlike poles attract None of these Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel Current is induced in a conductor that is moving through a magnetic field Like magnetic poles repel, while unlike poles attract ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating above its resonant frequency, a series RLC circuit has the characteristics of a: series RC circuit series RL circuit None of these series RLC circuit operated below its resonant frequency purely resistive circuit series RC circuit series RL circuit None of these series RLC circuit operated below its resonant frequency purely resistive circuit 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 None of these Current lags the voltage through a resistor All of these Current leads the voltage through a resistor Current and voltages are in phase through a resistor None of these Current lags the voltage through a resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? None of these P = E2/R I = P/E R = E2/P P = PR None of these P = E2/R I = P/E R = E2/P P = PR ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 60 V None of these 36 V 40 V 0 V 60 V None of these 36 V 40 V 0 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles For a pure capacitor: ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current leads the voltage by 90 degree None of these ac current and voltage are exactly in phase ac current lags the voltage by 90 degree ac current is converted to dc voltage ac current leads the voltage by 90 degree None of these ac current and voltage are exactly in phase ANSWER DOWNLOAD EXAMIANS APP
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