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+// Electric Machinery and Transformers
+// Irving L kosow 
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 10: SINGLE-PHASE MOTORS
+// Example 10-2
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data as per Ex.10-1
+hp = 0.25 ; // Power rating of the single-phase motor in hp
+V = 110 ; // Voltage rating of the single-phase motor in V
+I_s = 4 ; // Starting winding current
+phi_I_s = 15 ; // Phase angle in degrees by which I_s lags behind V
+I_r = 6 ; // Running winding current
+phi_I_r = 40 ; // Phase angle in degrees by which I_r lags behind V 
+
+// Calculations
+// case a
+P_s = V * I_s * cosd(phi_I_s); // Power dissipated in the starting winding in W
+
+// case b
+P_r = V * I_r * cosd(phi_I_r); // Power dissipated in the running winding in W
+
+// case c
+P_t = P_s + P_r ; // Total instantaneous power dissipated during starting in W
+
+// case d
+P_r_d = P_r ; // Total steady-state power dissipated during running in W
+
+// case e
+eta = ( hp * 746 ) / P_r * 100 ; // Motor efficiency in percent
+
+// Display the results
+disp("Example 10-2 Solution : ");
+printf(" \n a: Power dissipated in the starting winding\n    P_s = %d W \n", P_s );
+
+printf(" \n b: Power dissipated in the running winding\n    P_r = %.1f W \n", P_r );
+
+printf(" \n c: Total instantaneous power dissipated during starting\n    P_t = %.1f W \n", P_t );
+
+printf(" \n d: Total steady-state power dissipated during running\n    P_r = %.1f W \n", P_r_d );
+
+printf(" \n e: Motor efficiency \n    η = %.f percent \n", eta );