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diff --git a/147/CH3/EX3.19/Example3_19.sce b/147/CH3/EX3.19/Example3_19.sce
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--- /dev/null
+++ b/147/CH3/EX3.19/Example3_19.sce
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+close();
+clear;
+clc;
+//line voltage 'Vl', resistance 'R', reactance 'X'
+Vl = 207.8; 
+R = 36;
+X = 48;
+//inpedance
+Z = sqrt(R^2 + X^2);
+//(a)phase current 'Ip'
+Ip = Vl/Z; //A
+mprintf("Phase current, Ip = %0.2f A\n\n",Ip);
+
+//(b)line current 'Il'
+Il = sqrt(3)*Ip; //A
+mprintf("Line current, Il = %d A\n\n",round(Il));
+
+//(c)power factor 'pf'
+pf = R/Z;
+mprintf("Power factor, pf = %0.1f lagging\n\n",pf);
+
+//(d)total power 'P'
+P = sqrt(3)*Vl*Il*pf; //W
+mprintf("Total power, P = %d W",round(P));