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diff --git a/431/CH5/EX5.4/EX5_4.sce b/431/CH5/EX5.4/EX5_4.sce
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+//chapter 5
+//example 5.4
+//page 426
+clear;
+clc;
+disp("example 5.4");
+printf("\n");
+slots=72;    //number of slots
+P=8;         //number of poles
+ph=3;        //3-phase machine
+N=750;       //speed of machine in rpm
+//winding is made with 36 coils having 10 turns
+Fp=0.15;     //flux per pole
+fre=(P*N)/120;
+NCp=36/ph;   //nmber of coils per phase
+T=NCp*10;    //number of turns per phase
+k_p=1;       //since full pitched pitch factor is 1
+printf("flux per pole=%fWb\n",Fp)
+printf("number of turns per phase=%d\n",T);
+printf("pitch factor=%f\n",k_p);
+m=slots/(P*ph); //slots per pole per phase
+SA_m=360/slots; //slot angle mechanical
+SA_e=(P/2)*SA_m;
+k_d=sind((m*SA_e)/2)/(m*sind(SA_e/2));
+printf("distribution factor=%f\n",k_d);
+E=4.44*Fp*fre*T*k_d*k_p;
+printf("RMS vale of emf induced per phase=%fV\n",E)
+\ No newline at end of file