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+//Example 11.13
+clc;
+//Wein's Bridge
+//Given values of bridge elements
+R1=800;
+C1=0.5*10^-6;
+C2=1.0*10^-6;
+R2=400;
+R4=1000;
+//Frequency of the circuit
+x=sqrt(C1*C2*R1*R2);
+f=invr(2*%pi*x);
+printf('\nFrequency for which bridge is balance is %.2f Hz\n',f)
+//Given is following condition
+// R2/R1 + C1/C2 = R4/R3
+// R3 = R = unknown
+R=R4*invr(R2/R1+C1/C2);
+printf('\nValue of resistence required to balance bridge is %.2f ohm\n',R)
+\ No newline at end of file