Question

does the value of Young's modulus changes on changing the length of a wire??

Answer 1

HEY mate here is ur query..

*************



Young's modulus
=(stress)/(strain)=constant


Young's modulus
=(force×length)/(tension×area)




for a certain material..

if length will increase the diameter decreases
and the ratio of stress and strain remains cons.

"***********"

Hope this will help you..

Answer 2

Young’s modulus for a material remains constant upto a certain value of stress, after which it undergoes various changes.

The Young’s modulus is constant up to the Yield Strength point, upto which Hooke’s law is followed. After that, the curve becomes non-linear.