EEE :: Passive Filters
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In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency
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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 circuit's critical frequency is -
In a series resonant band-pass filter, a lower value of Q results in
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The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is
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A parallel resonant band-pass filter consists of a 90
resistor in series with a parallel network made up of a 60 mH coil and a 0.02 
F capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of 20 . What is the center frequency of the filter? -
An RL high-pass filter consists of a 470
resistor and a 600 mH coil. The output is taken across the coil. The circuit's critical frequency is -
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? -
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)? -
An RC low-pass filter consists of a 120
resistor and a 0.002 F capacitor. The output is taken across the capacitor. The circuit's critical frequency is -
Referring to Problem 15, if the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude?
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