//ex10.8 V_GS=-12; I_GSS=100*10^-9; R_G=10*10^6; R_D=10*10^3; C1=0.001*10^-6; C2=0.001*10^-6; R_in_gate=abs((V_GS/I_GSS)); R_in=(R_in_gate*R_G)/(R_G+R_in_gate); R_L=R_in; //according to question f_c_input=1/(2*%pi*R_in*C1); disp(f_c_input,'critical frequency of input RC circuit in hertz') f_c_output=1/(2*%pi*(R_D+R_L)*C2) disp(f_c_output,'critical frequency of output RC circuit in hertz')