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+
+// ELECTRICAL MACHINES
+// R.K.Srivastava
+// First Impression 2011
+// CENGAGE LEARNING INDIA PVT. LTD
+
+// CHAPTER : 5 : INDUCTION MACHINES
+
+// EXAMPLE : 5.12
+
+clear ; clc ; close ; // Clear the work space and console
+
+
+// GIVEN DATA
+
+m = 3; // Total Number of phase in Induction Motor
+p = 2; // Total number of Poles of Induction Motor
+f = 50; // Frequency in Hertz
+s = 0.05; // Slip
+
+
+// CALCULATIONS
+
+Ns = (120*f)/p; // Synchronous Speed in RPM
+Nr = (1-s)*Ns; // Rotor Speed in RPM
+Nf = s*Ns; // Speed of Forward Rotating magnetic fields with respect to stator and rotor in RPM
+Nb = (p-s)*Ns; // Speed of Backward Rotating magnetic fields with respect to stator and rotor in RPM
+fr = (p-s)*f; // Backward rotating magnetic field induces a current of frequency in Hertz
+
+
+// DISPLAY RESULTS
+
+disp("EXAMPLE : 5.12 : SOLUTION :-");
+printf("\n (a) Speed of Forward Rotating magnetic fields with respect to stator and rotor is equal to + %.f RPM \n",Nf)
+printf("\n (b) Speed of Backward Rotating magnetic fields with respect to stator and rotor is equal to + %.f RPM \n",Nb)