// Exa 7.15 clc; clear; close; format('v',5) // Given data R1 = 20;// in k ohm R1 = R1 * 10^3;// in ohm R2 = R1;// in ohm R = R1;// in ohm C1 = 1000;// in pF C1 = C1 * 10^-12;// in F C2 = C1;// in F C = C1;// in F f = 1/(2*%pi*R*C);// in Hz f= f*10^-3;// in kHz disp(f,"The frequency of oscillations in kHz is");