The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young’s modulus, respectively, are $8 imes 10^8$ N m$^{-2}$ and $2 imes 10^{11}$ N m$^{-2}$, is:

Question

The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young’s modulus, respectively, are $8 	imes 10^8$ N m$^{-2}$ and $2 	imes 10^{11}$ N m$^{-2}$, is:

Dr. Abubacker · Accepted Answer

[Solution by Claude - not from source] $\Delta l=\frac{	ext{stress}}{Y}L=\frac{8	imes10^8}{2	imes10^{11}}	imes1=4	imes10^{-3}$ m $=4$ mm. Answer (3).

Q. The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young’s modulus, respectively, are $8 \times 10^8$ N m$^{-2}$ and $2 \times 10^{11}$ N m$^{-2}$, is:

Explanation

Reviewed by Dr. Abubacker

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