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+clc
+//Example 13.2
+disp('Given')
+disp('Input voltage is 10V')
+Viamp=10
+//From figure 13.7
+//Writing the left mesh equations
+disp('(1+10i)*I1-90i*I2=10')
+//Writing the right mesh equations
+disp('(400+1000i)*I2-90i*I1=0')
+i=%i
+A=[1+10*i -90*i;-90*i 400+1000*i]
+i2mat=[1+10*i 10; -90*i 0]
+//Find i2
+i2=det(i2mat)/det(A)
+[mag Theta]=polar(i2)
+Theta=(Theta*180)/%pi
+//The value of resistor is 400 ohm
+R=400;
+//Let V=V2/V1
+Vamp=R*mag/Viamp
+printf("Ratio of output voltage to input is %3.2f with angle %3.2f degrees",Vamp,Theta); \ No newline at end of file