Q.1:
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V.the filters bandwidth is____________?|
A.
530 Hz
B.
106 Hz
C.
11.5 Hz
D.53 Hz
Q.2:
In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency_____________?
A.
is 7 kHz
B.
is 10 kHz
C.is 12 kHz
D.
cannot be determined
Q.3:
In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________?H
A.
3.5 kHz
B.
0 Hz
C.0 Hz to 3.5 kHz
D.
7 kHz
Q.4:
A series resonant band-stop filter consists of a 68 resistor, a 110 mH coil, and a 0.02 F capacitor. The internal resistance, RW, of the coil is 4 . Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?!
A.
1.1 mV
B.11.1 mV
C.
111 mV
D.
200 mV
Q.5:
A series resonant band-pass filter consists of a 2 mH coil, a 0.005 F capacitor, and a 120 resistor. The winding resistance of the coil is 12 . The output voltage is taken off the resistor. Input voltage is 12 Vrms. What is the output voltage magnitude at the center frequency (f0)?!
A.10.9 V
B.
1.09 V
C.
1.1 V
D.
12 V
Q.6:
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is_____________?
A.
6.02 dB
B.-6.02 dB
C.
12.04 dB
D.
-12.04 dB
Q.7:
An RC high-pass filter consists of a 0.2 F capacitor and a 220 resistor. The output is taken across the resistor. The circuits critical frequency is_____________?
A.
723 Hz
B.
7,234 Hz
C.
362 Hz
D.3,617 Hz
Q.8:
An RL low-pass filter consists of a 5.6 mH coil and a 3.3 k resistor. The output voltage is taken across the resistor. The circuits critical frequency is______________?
A.93.8 kHz
B.
93.8 Hz
C.
861 Hz
D.
86.12 kHz
Q.9:
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
Q.10:
A parallel resonant band-pass filter consists of a 6.8 resistor in series with a parallel network made up of an 8 H coil and a 120 pF capacitor. The output is taken across the capacitor/coil. Assume RW = 0 . What is the center frequency of the filter?