Engineering Board Exam Reviewer · Passive Filters · easy
The RC high-pass filter shown uses R=4.7 k and C=22 nF. Find its cutoff frequency.
- 9.67 kHz
- 1.54 kHz
- 0.77 kHz
- 3.08 kHz
Answer
B. 1.54 kHz
Solution
fc=1/2π RC= 12π(4.7 k )(22 nF)=1.54 kHz.
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