disp('chapter 4 ex4.2')
disp('given')
disp('capacitor coupled voltage follower design using BIFET')
disp("lower cut off frequency for the circuit =50Hz")
disp('Rl=3.9kohms')
disp("R1max=1Mohms")
R1=1000000
f1=50
disp("Xc1=R1/10 at F1")
disp("C1=1/(2*pi*f1*(R1/10))")
C1=1/(2*%pi*f1*(R1/10))
disp('farad',C1)
Rl=3900
disp("Xc2=Rl at f1")
disp("C2=1/(2*pi*f1*Rl)")
C2=1/(2*%pi*f1*Rl)
disp('farad',C2)
disp("The circuit voltage should be normally between 9 to 18 volts")