Electronic Principles Current and voltage are said to be in phase when: their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc All of these None of these their waveforms cross through zero and reach positive and negative peaks at the same time they have the same amplitude and frequency their waveforms are both ac or both dc All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rms value of a sine waveform is: equal to 0.707 times the peak amplitude the number of cycles completed in one second equal to 1.41 times the peak amplitude None of these the time required to complete one full cycle equal to 0.707 times the peak amplitude the number of cycles completed in one second equal to 1.41 times the peak amplitude None of these the time required to complete one full cycle 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? E = I2R I = ER E = PR None of these I = E/R E = I2R I = ER E = PR None of these I = E/R ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 kV is: None of these 1000 V 100 mV 1.00 V 1000 mV None of these 1000 V 100 mV 1.00 V 1000 mV ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: is minimum at the resonant frequency is maximum at the resonant frequency None of these always decreases as the applied frequency increases always increases as the applied frequency increases is minimum at the resonant frequency is maximum at the resonant frequency None of these always decreases as the applied frequency increases always increases as the applied frequency increases ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of an inductive circuit: None of these cuts the inductive reactance in half doubles the amount of inductive reactance has no effect on the inductive reactance multiplies the inductive reactance by 6.28 None of these cuts the inductive reactance in half doubles the amount of inductive reactance has no effect on the inductive reactance multiplies the inductive reactance by 6.28 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS