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MCQs

Total Questions : 25 | Page 3 of 3 pages
Question 21. 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
  1.    723 Hz
  2.    7,234 Hz
  3.    362 Hz
  4.    3,617 Hz
 Discuss Question
Answer: Option D. -> 3,617 Hz
Question 22. 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
  1.    125 Hz
  2.    1,250 Hz
  3.    564 Hz
  4.    5,644 Hz
 Discuss Question
Answer: Option A. -> 125 Hz
Question 23. 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?
  1.    0 V
  2.    5.97 V
  3.    6 V
  4.    597 mV
 Discuss Question
Answer: Option B. -> 5.97 V
Question 24. 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?
  1.    5.14 MHz
  2.    514 kHz
  3.    5.03 MHz
  4.    503 kHz
 Discuss Question
Answer: Option A. -> 5.14 MHz
Question 25. 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?
  1.    459 Hz
  2.    4,591 Hz
  3.    999 Hz
  4.    2,176 Hz
 Discuss Question
Answer: Option B. -> 4,591 Hz

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