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+// Electric Machinery and Transformers
+// Irving L kosow 
+// Prentice Hall of India
+// 2nd editiom
+
+// Chapter 3: DC Dynamo Voltage Relations - DC Generators
+// Example 3-4
+
+clear; clc; close; // Clear the work space and console.
+
+// Given data
+S_final = 1200; // Speed of th generator in rpm
+E_orig_a = 64.3; // Armature voltage of the generator  in V for case a
+E_orig_b = 82.9; // Armature voltage of the generator  in V for case b
+E_orig_c = 162.3; // Armature voltage of the generator  in V for case c
+
+S_orig_a = 1205; // Varied Speed of the generator in rpm for case a
+S_orig_b = 1194; // Varied Speed of the generator in rpm for case b
+S_orig_c = 1202; // Varied Speed of the generator in rpm for case c
+
+// Calculations
+E_1 = E_orig_a * ( S_final / S_orig_a ); // No- load voltage of the generator 
+// generator  in V for case a
+E_2 = E_orig_b * ( S_final / S_orig_b ); // No- load voltage of the generator 
+// generator  in V for case b
+E_3 = E_orig_c * ( S_final / S_orig_c ); // No- load voltage of the generator 
+// generator  in V for case c
+
+// Display the results
+disp("Example 3-4 Solution : ")
+printf("\n a: E1 = %.1f V at %d rpm ", E_1, S_final );
+printf("\n b: E2 = %.1f V at %d rpm ", E_2, S_final );
+printf("\n c: E3 = %.1f V at %d rpm ", E_3, S_final );