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+//Example No. 5.27
+clc;
+clear;
+close;
+format('v',9);
+
+//Given Data :
+V1=230;//V
+P=15;//hp
+N=1500;//rpm
+V2=220;//V
+Ke=0.03;//V/A-s
+Kt=0.03;//N-m/A^2
+alfa=45;//degree
+Vm=V1*sqrt(2);//V
+omega=N*2*%pi/60;//rad/s
+T=4*Kt*Vm^2*cosd(alfa)^2/(%pi^2*(Ke*omega)^2);//N-m
+Ia=sqrt(T/Kt);//A
+disp("part (a) : ");
+disp(T,"Torque in N-m : ");
+disp(Ia,"Armature current in A : ");
+disp("part (b) : ");
+Ia=Vm*(1+cosd(alfa))/(%pi*(Ke*omega));//A
+T=Kt*Ia^2;//N-m
+disp(Ia,"Armature current in A : ");
+disp(T,"Torque in N-m : ");