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- Question
In a series resonant band-pass filter, a lower value of Q results in
Options- A. a higher resonant frequency
- B. a smaller bandwidth
- C. a higher impedance
- D. a larger bandwidth
- Correct Answer
- a larger bandwidth
- 1. 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
Options- A. 18 V peak-to-peak
- B. zero
- C. 9 V peak-to-peak
- D. 12.73 V peak-to-peak Discuss
- 2. Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is
Options- A. 0 dB
- B. 8.30 dB
- C. ?8.30 dB
- D. 0.8 dB Discuss
- 3. When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle
Options- A. increases
- B. decreases
- C. is not affected
- D. cannot be determined Discuss
- 4. In a series RL circuit, 12 V rms is measured across the resistor, and 14 V rms is measured across the inductor. The peak value of the source voltage is
Options- A. 18.4 V
- B. 26.0 V
- C. 2 V
- D. 20 V Discuss
- 5. A 470 Ω resistor and a coil with 125 Ω inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor is
Options- A. 152 mA
- B. 32 mA
- C. 12 mA
- D. 120 mA Discuss
- 6. The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is
Options- A. 0 V
- B. 15 V
- C. 10.60 V
- D. 21.21 V Discuss
- 7. 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
Options- A. 333 kHz
- B. 633 kHz
- C. 331 kHz
- D. 60 kHz Discuss
- 8. 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?
Options- A. 6 V
- B. 597 mV
- C. 5.97 V
- D. 0 V Discuss
- 9. In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency
Options- A. is 7 kHz
- B. is 10 kHz
- C. is 12 kHz
- D. cannot be determined Discuss
- 10. 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
Options- A. 723 Hz
- B. 7,234 Hz
- C. 362 Hz
- D. 3,617 Hz Discuss
Passive Filters problems
Search Results
Correct Answer: 18 V peak-to-peak
Correct Answer: ?8.30 dB
Correct Answer: increases
Correct Answer: 26.0 V
Correct Answer: 120 mA
Correct Answer: 10.60 V
Correct Answer: 633 kHz
Correct Answer: 5.97 V
Correct Answer: is 12 kHz
Correct Answer: 3,617 Hz
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