Engineering Board Exam Reviewer · Passive Filters · medium
An RC low-pass filter is driven by a 10 V signal at ten times its cutoff frequency. Find the output voltage.
- 7.07 V
- 0.1 V
- 3.16 V
- 0.995 V
Answer
D. 0.995 V
Solution
VoutVin= 1sqrt(1+(f/fc)2)= 1sqrt(1+102)=0.0995. Vout=10(0.0995)=0.995 V.
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