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+// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION 
+
+// PART IV : UTILIZATION AND TRACTION
+// CHAPTER 1: INDUSTRIAL APPLICATIONS OF ELECTRIC MOTORS
+
+// EXAMPLE : 1.12 :
+// Page number 687-688
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+speed_per = 15.0   // Motor speed increased by(%)
+
+// Calculations
+N_2 = (100+speed_per)/100       // New speed N_2(rpm)
+phi_2 = 1/N_2*100               // Flux_2 in terms of full load flux
+I_sc1 = 0.75                    // New series field current in terms of I_a1
+I_a2 = N_2                      // Armature current in terms of I_a1
+R_d = I_sc1/(I_a2-I_sc1)*100    // Diverter resistance in terms of series field resistance(%)
+
+// Results
+disp("PART IV - EXAMPLE : 1.12 : SOLUTION :-")
+printf("\nDiverter resistance, R_d = %.1f percent of field resistance", R_d)