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// Exa 2.6
clc;
clear;
// Given
// An Amilifier under consideration
Av = 40; // Voltage gain
Vi = 0.1; // Input voltage without feedback(V)
Vi_fb = 2.4; // Input voltage with feedback(V)
// Solution
A = Av*Vi_fb/Vi;
// Av = A/(1-B*A) ; therefore,
B = (1-A/Av)/A;
printf(' The value of feedback ratio = %.6f \n ',B);
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