disp('chapter 5 ex5.13')
disp('given')
disp('Determining the feedback capacitor')
disp('R1=220ohms')
disp('R2=22kohms')
disp('Cs from example 5.12=58pF')
R1=220
R2=22000
Cs=58*10^(-12)
disp('C2=R1*Cs/R2')
C2=R1*Cs/R2
disp('farads',C2)