Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in one direction, but changes value periodically The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in one direction, but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance cuts the inductive reactance in half has no effect on the inductive reactance None of these multiplies the inductive reactance by 6.28 doubles the amount of inductive reactance cuts the inductive reactance in half has no effect on the inductive reactance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The value of a capacitor can be made larger by: increasing the frequency of the applied voltage None of these increasing the area of the plates increasing the voltage applied to the plates decreasing the area of the plates increasing the frequency of the applied voltage None of these increasing the area of the plates increasing the voltage applied to the plates decreasing the area of the plates ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A basic capacitor is composed of: two conductors separated by a dielectric two coils separated by a conductor None of these two dielectrics separated by a conductor two coils separated by a dielectric two conductors separated by a dielectric two coils separated by a conductor None of these two dielectrics separated by a conductor two coils separated by a dielectric ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? Current lags the voltage through a resistor None of these Current leads the voltage through a resistor All of these Current and voltages are in phase through a resistor Current lags the voltage through a resistor None of these Current leads the voltage through a resistor All of these Current and voltages are in phase through a resistor ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency None of these All of these their waveforms are both ac or both dc their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency None of these All of these ANSWER DOWNLOAD EXAMIANS APP
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