## In a certain low-pass filter, fc = 3.5 kHz. Its pass-band…

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# Passive Filters

## An RC high-pass filter consists of an 820 Ω resistor. What is the value of C so that Xc is ten times…

An RC high-pass filter consists of an 820 Ω resistor. What is the value of C so that Xc is ten times less than Rat an input frequency of 12 kHz? A. 81 µF B. 161 µFC. 0.161 µF D. 220 µF

## In a series resonant band-pass filter, a lower value of Q results in______________?

In a series resonant band-pass filter, a lower value of Q results in______________? A. a higher impedance B. a smaller bandwidth C. a higher resonant frequencyD. a larger bandwidth

## The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical…

The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is_____________? A. 10.60 V B. 0 V C. 21.21 V D. 15 V

## The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the…

The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the input frequency, the output voltage is____________? A. 12.73 V peak-to-peakB. 18 V peak-to-peak C. 9 V peak-to-peak D. zero…

## A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the…

A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the reactance at the input frequency is zero, the output voltage is____________? A. 18 V peak-to-peakB. zero C. 9 V peak-to-peak D.…

## Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is__________?

Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is__________? A. 0 dB B. 8.30 dBC. -8.30 dB D. 0.8 dB

## A parallel resonant band-pass filter consists of a 6.8 Ω resistor in series with a parallel network…

A parallel resonant band-pass filter consists of a 6.8 Ω resistor in series with a parallel network made up of an 8 µH coil and a 120 pF capacitor. The output is taken across the capacitor/coil. Assume RW = 0 Ω. What is the center…

## In a certain low-pass filter, fc = 3.5 kHz. If the input voltage is a 6 V sine wave with a dc level…

In a certain low-pass filter, fc = 3.5 kHz. If the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude? A. 0 VB. 5.97 V C. 6 V D. 597 mV

## An RL low-pass filter consists of a 5.6 mH coil and a 3.3 kΩ resistor. The output voltage is taken…

An RL low-pass filter consists of a 5.6 mH coil and a 3.3 kΩ resistor. The output voltage is taken across the resistor. The circuit’s critical frequency is______________? A. 93.8 kHz B. 93.8 Hz C. 861 Hz D. 86.12 kHz…

## An RC high-pass filter consists of a 0.2 µF capacitor and a 220 Ω resistor. The output is taken…

An RC high-pass filter consists of a 0.2 µF capacitor and a 220 Ω resistor. The output is taken across the resistor. The circuit’s critical frequency is_____________? A. 723 Hz B. 7,234 Hz C. 362 HzD. 3,617 Hz…