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+//CHAPTER 10- THREE-PHASE INDUCTION MACHINES
+//Example 10
+
+disp("CHAPTER 10");
+disp("EXAMPLE 10");
+
+//VARIABLE INITIALIZATION
+P=6;                            //number of poles
+f=60;                           //in Hertz
+p=48;                           //stator input in Watts
+N_r=1140;                       //in rpm
+cu_loss=1.4;                    //stator copper loss in Watts 
+cr_loss=1.6;                    //stator core loss in Watts
+me_loss=1;                      //rotor mechanical loss in Watts
+
+//SOLUTION
+N_s=(120*f)/P;
+s=(N_s-N_r)/N_s;
+p_g=p-(cu_loss+cr_loss);        //rotor input
+p_m=p_g*(1-s);                  //output mechanical power
+p_sh=p_m-me_loss;               //shaft power
+eff=p_sh/p;
+disp(sprintf("The motor efficiency is %f %%",eff*100));
+
+//END
+