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+// Electric Machinery and Transformers
+// Irving L kosow 
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 10: SINGLE-PHASE MOTORS
+// Example 10-4
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data (from Table 10-2)
+T_r = 1 ; // Rated torque in lb-ft
+T_s = 4.5 ; // Starting torque in lb-ft (rfom Locked-Rotor Data)
+T_br = 2.5 ; // Breakdown torque in lb-ft (Breakdown-Torque Data)
+
+// Rated Load Data
+P = 400 ; // Rated input power in W
+V = 115 ; // Rated input voltage in volt
+I_t = 5.35 ; // Rated input current in A
+Speed = 1750 ; // Rated speed in rpm
+
+// Calculations
+// case a
+ratio_s_r_T = T_s / T_r ; // Ratio of starting to rated torque
+
+// case b
+ratio_s_br_T = T_br / T_r ; // Ratio of breakdown to rated torque
+
+// case c
+P_o_hp = 1 / 3 ; // Power output in hp
+P_o = P_o_hp * 746 ; // Power output in W 
+eta = P_o / P * 100 ; // Rated load efficiency
+
+// case d
+S = V * I_t ; // VA rating of the motor
+cos_theta = P / S ; // Rated load - power factor
+
+// case e
+T = 1 ; // Rated load torque in lb-ft
+hp = (T*Speed)/5252 ; // Rated load horsepower
+
+// Display the results
+disp("Example 10-4 Solution : ");
+
+printf(" \n a: T_s/T_r = %.1f \n ",ratio_s_r_T );
+
+printf(" \n b: T_br/T_r = %.1f \n ",ratio_s_br_T );
+
+printf(" \n c: Rated load efficiency \n    η = %.1f percent \n ",eta );
+
+printf(" \n d: Rated load power factor\n    cosθ = %.4f \n ",cos_theta );
+
+printf(" \n e: Rated load horsepower\n    hp = %.4f hp ",hp);