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//Chapter 20, Problem 1
clc;
Rp=30; //resistance in ohm
Vl=415; //3-phase supply
Vp=Vl/sqrt(3); //phase voltage
Ip=Vp/Rp; //phase current
printf("(a) System phase voltage = %.1f V\n or 240 V,correct to 3 significant figures\n\n",Vp);
printf("(b) Phase current = %.2f A\n\n",Ip);
printf("(c) For a star connection, Ip =IL hence the line current,\n Line current = %.2f A\n\n",Ip);
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