//Ex8_6 clc Av=36 disp("Av= "+string(Av)+" dB") //Voltage gain R1=1*10^(3)// Choosing value of R1 disp("R1= "+string(R1)+ " ohm") // Resistor at input side of OP-AMP RF=R1*[10^(Av/20)-1] // Using formulae Av=20*log(1+RF/R1) disp("RF=R1*[10^(Av/20)-1]= "+string(RF)+ " ohm") // Calculated Feedback resistance //NOTE: Correct value of RF=62095.734 ohm or 62.095 kilo ohm but in book given as 62.24 kilo ohm