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______________?

Related Mcqs:

1. A series resonant band-pass filter consists of a 2 mH coil, a 0.005 µF capacitor, and a 120 Ω resistor. The winding resistance of the coil is 12 Ω. 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

2. A series resonant band-stop filter consists of a 68 Ω resistor, a 110 mH coil, and a 0.02 µF capacitor. The internal resistance, RW, of the coil is 4 Ω. 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

3. 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

4. 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 frequency of the filter?

   A. 5.14 MHz
   B. 514 kHz
   C. 5.03 MHz
   D. 503 kHz

5. An RL high-pass filter consists of a 470 Ω resistor and a 600 mH coil. The output is taken across the coil. The circuit’s critical frequency is___________?

   A. 125 Hz
   B. 1,250 Hz
   C. 564 Hz
   D. 5,644 Hz

6. 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

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___________?

   A. 333 kHz
   B. 633 kHz
   C. 331 kHz
   D. 60 kHz

8. The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)___________?

   A. 6.8 kΩ
   B. 2.2 kΩ
   C. 6.8 kΩ and 10 kΩ
   D. 2.2 kΩ and 1 kΩ

9. 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

10. 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-peak
    B. zero
    C. 9 V peak-to-peak
    D. 12.74 V peak-to-peak