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+clc;
+clear all;
+Y = 2e11 // Young's modulus in newton per square meter
+l = 2.75 // Length of wire in meters
+d = 1e-3 // Diameter of wire in meter
+r = (d/2); // Radius of wire
+M = 1 // Applied load in kilogram
+g = 9.8 // Acceleration due to gravity
+T = M*g; // Tensile force
+deltal = (T*l)/(%pi*r*r*Y);//Increase in length of wire
+disp('m',deltal,'Increase in length of wire is')
+// Variation in answer.. there is mistake in the book..checked in calculator also..
+