Engineering Board Exam Reviewer · Passive Filters · medium
The series RLC band-pass filter shown takes its output across the resistor, with L=10 mH, C=100 nF, and R=100, . Find its bandwidth.
- 10 kHz
- 5.03 kHz
- 1.59 kHz
- 0.796 kHz
Answer
C. 1.59 kHz
Solution
BW=R/2π L= 100, 2π(10 mH)=1.59 kHz. (Equivalently Q=XL/R=3.16 and BW=f0/Q=1.59 kHz.)
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