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// Example 5.4:amplifier gain
clc;
clear;
close;
f=50;//frequency in hertz
Avm=150/0.707;//mid voltage gain
fh=20;//lower cut off frequency in hertz
Avh= (Avm/(sqrt(1+(f/fh)^2)));//gain at upper cut off frequency
disp(Avh,"gain at upper cut off frequency")
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