Question

In an experiment to determine the young modulus e of the material of a wire, the measurements taken are shown. Mass hung on end of wire m = 2.300 0.002 kg original length of wire l = 2.864 0.005 m diameter of wire d = 0.82 0.01 mm extension of wire e = 7.6 0.2 mm the young modulus is calculated using

Answer 1

formula for such qstions,

youngs modulus(Y)= stress/strain

>> stress=force(F)/ cross section area on which the force is applied(A)

>>strain=original length of wire(L)/ change in legth of wire(delL)

so Y=FL/AdelL. Now simply place the values with understanding!!