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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 : 1.19 :
+// Page number 701
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+T = 312.5         // Load torque(N-m)
+N = 500.0         // Speed limit(rpm)
+R_total = 1.0     // Total resistance of armature & field(ohm)
+
+// Calculations
+input_load = 2*%pi*N*T/60          // Input from load(W)
+E = 345.0                          // Voltage from magnetization curve(V). From Fig E1.5 page no 701
+I = 47.5                           // Current from magnetization curve(A). From Fig E1.5 page no 701
+R = E/I                            // Resistance(ohm)
+R_add = R-R_total                  // Additional resistance required(ohm)
+
+// Results
+disp("PART IV - EXAMPLE : 1.19 : SOLUTION :-")
+printf("\nValue of resistance to be connected in motor circuit = %.2f ohm", R_add)