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+//Example 1_4 page no:47
+clc;
+//given
+//In text book the answers are rounded off so result vary slightly with text book
+power = 15*1000;//in W
+I = 60;
+rpm = 450;
+E = 322;
+I = 41.2;
+full_load_torque = (power*I)/(2*%pi*rpm);
+output = E*I;
+disp(output,"the output from the machine is (in W)");
+mac_input = (2*%pi*rpm*318)/60;
+disp(mac_input,"the mechanical input to the machine from the load if it were running at 450 rev/min would be(in W)");
+//rpm at 500;
+rpm = 500;
+mac_input = (2*%pi*rpm*318)/60;
+disp(mac_input,"the mechanical input to the machine at 500 rev/min is (in W)");