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+clc;
+//page no 8-27
+//Example 8.7
+//Given
+C=0.001*10^(-6);//in Farads
+Rc=50*10^3;//in ohm
+fm=1*10^3;//in Hz
+//we know that Zm=Rc||C
+//=1/sqrt((1/Rc^2)+(1/Xc^2))
+//Xc=1/(2*%pi*f*C)
+//Mmax=Zm/Rc=1/Rc*sqrt((1/Rc^2)+(1/(1/2*%pi*f*C)^2)) which gives
+Mmax=1/sqrt(1+(2*%pi*fm*C*Rc)^2);
+disp(Mmax,'Maximum modulation index for modulation frequency 1kHz is ');
+fm2=5*10^3;//in Hz
+Mmax1=1/sqrt(1+(2*%pi*fm2*C*Rc)^2);
+disp(Mmax1,'Maximum modulation index for modulation frequency 5kHz is ');