A copper wire with and length

PHYSICS · Numerical · CBSE · Physics · Mechanical Properties of Solids · Mechanical Properties of Solids

Problem

A copper wire with

Y=1\times10^{11}\ \text{N m}^{-2}

and length

6\ \text{m}

, and a steel wire with

Y=2\times10^{11}\ \text{N m}^{-2}

and length

4\ \text{m}

, each with cross-sectional area

10^{-5}\ \text{m}^2

, are fastened end to end and stretched by a tension of

100\ \text{N}

. Find the elongation produced in the copper wire.