Engineering Board Exam Reviewer · Passive Filters · medium
The RL low-pass filter shown uses R=10 k and L=100 mH. Find its cutoff frequency.
- 100 kHz
- 31.8 kHz
- 15.9 kHz
- 7.96 kHz
Answer
C. 15.9 kHz
Solution
fc=R/2π L= 10 k 2π(100 mH)=15.9 kHz.
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