Question

Calculate the force to be applied to extend a steel wire of length 2m and diameter 1mm by 1mm.Given young modulus is 2×10¹¹ Nm^-11​

Answer 1

Answer:-

Given, L=1m,A=10−4m2, Δl=1mm, y=1011N/m2

We know, ΔL=AyFL

.001=10−4×1011F×1

F=104N

maybe this is your answer.