Explanation: Quality factor Q=√(fh×fL)/(fh-fL) = √(950Hz×250Hz)/(9950Hz-250Hz) =0.696. 9. The details of low pass filter sections are given as fh =10kHz, AF= 2 and f=1.2kHz. Find the voltage gain magnitude of first order wide band-pass filter, if the voltage gain magnitude of high pass filter section is 8.32dB.
A. 48.13dB
B. 10.02dB
C. 14.28dB
D. 65.99dB
Answer:A
Explanation: Quality factor Q=√(fh×fL)/(fh-fL) = √(950Hz×250Hz)/(9950Hz-250Hz) =0.696. 9. The details of low pass filter sections are given as fh =10kHz, AF= 2 and f=1.2kHz. Find the voltage gain magnitude of first order wide band-pass filter, if the voltage gain magnitude of high pass filter section is 8.32dB.
A. 48.13dB B. 10.02dB C. 14.28dB D. 65.99dB
Explanation: |VO/Vin|(high pass filter) = 8.32dB=10(8.32/20) =2.606.