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_____________?
Correct answer: D. 3,617 Hz
- A. 723 Hz
- B. 7,234 Hz
- C. 362 Hz
- D. 3,617 Hz
Explanation
For an RC high-pass filter, fc = 1/(2πRC). With R = 220 Ω and C = 0.2 µF, the result is approximately 3.617 kHz.
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