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+//Ex 5.19
+clc;
+clear;
+close;
+format('v',5);
+fmax=100;//Hz
+fa=fmax;//Hz
+disp("Various design parameters are : ");
+Ci=0.1;//micro F////Chosen for the design
+disp(Ci,"Capacitance Ci(micro F)");
+Rf=1/(2*%pi*fa*Ci*10^-6)/1000;//kohm
+disp(Rf,"Resistance Rf(kohm)");
+disp("Use f=15 kohm");
+fb=15*fa;//kHz
+Ri=1/(2*%pi*fb*Ci*10^-6)/1000;//kohm
+disp(Ri,"Resistance Ri(kohm)");
+disp("Use Ri=1 kohm");
+format('v',6);
+Cf=Ri*Ci/Rf;//micro F
+disp(Cf,"Capacitance Cf(micro F)");
+//Answer in the book is not accurate for Cf.