Electronic Principles Doubling the operating voltage of a purely capacitive circuit: None of these has no effect on the capacitive reactance multiplies the capacitive reactance by 7 cuts the capacitive reactance in half doubles the amount of capacitive reactance None of these has no effect on the capacitive reactance multiplies the capacitive reactance by 7 cuts the capacitive reactance in half doubles the amount of capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W? None of these 26.6 degree 180 degree 0 degree 90 degree None of these 26.6 degree 180 degree 0 degree 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of. the following phrases most accurately describes the nature of a pulsating dc voltage? The voltage causes current to flow in two directions at the same time The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically None of these The voltage causes current to flow in two directions at the same time The voltage remains at one polarity but changes value periodically The voltage remains at one polarity and at a steady level The voltage reverses polarity periodically None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements regarding ac circuits is correct? Current leads the voltage through a resistor Current lags the voltage through a resistor All of these None of these Current and voltages are in phase through a resistor Current leads the voltage through a resistor Current lags the voltage through a resistor All of these None 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: they have the same amplitude and frequency their waveforms are both ac or both dc None of these their waveforms cross through zero and reach positive and negative peaks at the same time All of these they have the same amplitude and frequency their waveforms are both ac or both dc None of these their waveforms cross through zero and reach positive and negative peaks at the same time All of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 35.4 V 37.4 V 38.74 V 30.4 V None of these 35.4 V 37.4 V 38.74 V 30.4 V None of these ANSWER DOWNLOAD EXAMIANS APP
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