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+//Ex10_3
+clc
+Av = 200// voltage gain
+D = 0.05// harmonic distortion in amplifier
+Df = 0.02//final reduced distortion
+beta = (D/Df-1)/Av//feedback gain
+disp("Av = "+string(Av))
+disp("D = "+string(D))
+disp("Df = "+string(Df))
+disp("beta = (D/Df - 1)/Av = "+string(beta))
+disp("beta = "+string(beta*100)+"%")