A. 10.9 V
B. 1.09 V
C. 1.1 V
D. 12 V
Passive Filters
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 Hz
D. 3,617 Hz
A parallel resonant band-pass filter consists of a 90 Ω resistor in series with a parallel network made up of a 60 mH coil and a 0.02 µF capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of 20 Ω. What is the center frequency of the filter?
A. 459 Hz
B. 4,591 Hz
C. 999 Hz
D. 2,176 Hz
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 frequency
D. a larger bandwidth
In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________?
A. 3.5 kHz
B. 0 Hz
C. 0 Hz to 3.5 kHz
D. 7 kHz
An RC low-pass filter consists of a 120 Ω resistor and a 0.002 µF capacitor. The output is taken across the capacitor. The circuit’s critical frequency is___________?
A. 333 kHz
B. 633 kHz
C. 331 kHz
D. 60 kHz
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 V
B. 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 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 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 µF
C. 0.161 µF
D. 220 µF
