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//To determine equivalent resistance using star-delta transformation
clc;
clear;
Rax=30;
Rcx=30;
Rac=30;
Ray=30;
Rcy=30;
// Delta to star conversion of the triangle CAX in the circuit
Rx=Rax*Rcx/(Rax+Rcx+Rac);
Ra=Rax*Rac/(Rax+Rcx+Rac);
Rc=Rac*Rcx/(Rax+Rcx+Rac);
R1=Ra+Ray;// Resistance from the common to Y of the upper limb
R2=Rc+Rcy;// Resistance from the common to Y of the lower limb
Reff=R1*R2/(R1+R2); // Effective resistance of both the limbs
Rxy=Rx+Reff; // Effective resistance across X and Y
printf('The Equivalent resistance = %g ohms\n',Rxy)
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