Electronic Principles Which one of the following statements most accurately describes the nature of inductive reactance? Inductive reactance is a force that tends to overcome the effects of counter emf Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is another term for counter emf None of these Inductive reactance is a force that tends to overcome the effects of counter emf Inductive reactance is an opposition to current flow in ac circuits Inductive reactance is an opposition to current flow in dc circuits Inductive reactance is another term for counter emf None of these 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 = E/R E = PR None of these I = ER E = I2R I = E/R E = PR None of these I = ER E = I2R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current? None of these 28.4 mA 34.4 mA 68.4 mA 24.2 mA None of these 28.4 mA 34.4 mA 68.4 mA 24.2 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the diameter of the coil in an inductor: multiplies the value of inductance by two reduces the value of inductance by one-half None of these multiplies the value of inductance by four reduces the value of inductance by one-fourth multiplies the value of inductance by two reduces the value of inductance by one-half None of these multiplies the value of inductance by four reduces the value of inductance by one-fourth ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Reluctance Permeability Permeance Retentivity There is no valid comparison Reluctance Permeability Permeance Retentivity There is no valid comparison ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rms value of a sine waveform is: equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second equal to 1.41 times the peak amplitude the time required to complete one full cycle equal to 0.707 times the peak amplitude None of these the number of cycles completed in one second equal to 1.41 times the peak amplitude the time required to complete one full cycle ANSWER DOWNLOAD EXAMIANS APP
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