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+// Exa 7.2
+clc;
+clear;
+close;
+//given data
+f=1;// in kHz
+f=f*10^3;// in Hz
+V_CC= 10;// in volt
+I_B_max= 500;// in nA (for 741 IC op-amp)
+I_B_max= I_B_max*10^-9;// in A
+I1= 100*I_B_max;// in A
+V_out= (V_CC-1);// in volt
+V_in= V_out/29;
+R1= V_in/I1;// in ohm
+R1=R1*10^-3;//in k ohm
+// 5.6 k ohm resistor may be used for R1, being standard value resistor
+R1=5.6;// in k ohm (standard value)
+A=29;
+R_f= A*R1;
+// 180 k ohm resistor may be used to provide A > 29
+R_f=180;// in k ohm (standard value)
+R_comp= R_f;
+R=R1;// in k ohm
+R=R*10^3;// in ohm
+C=1/(2*%pi*f*R*sqrt(6));// in F
+C=C*10^6;// in micro F
+disp(R_comp,"Value of R_comp and R_f in kohm");
+disp(R*10^-3,"Value of R and R1 in kohm");
+disp(C,"Used capacitor in micro F")
+
+
+
+