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//CHAPTER 1- D.C. CIRCUIT ANALYSIS AND NETWORK THEOREMS
//Example 9
disp("CHAPTER 1");
disp("EXAMPLE 9");
//VARIABLE INITIALIZATION
r1=1; //in Ohms
r2=2; //in Ohms
r3=3; //in Ohms
r4=1; //in Ohms
//SOLUTION
//delta values
rab=r1; //between points a and b
rac=r2; //between points a and c
rbc=r3; //between points b and c
//coverting delta abc into star
//star values
r=rab+rbc+rac;
ra=(rab*rac)/r;
rb=(rab*rbc)/r;
rc=(rbc*rac)/r;
req1=r1+r4;
req2=rb+r2;
req3=(req1*req2)/(req1+req2);
req4=ra+req3;
disp(sprintf("The equivalent input resistance is %f Ω",req4));
//END
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