A copper wire of length 3 m is stretched by 3 mm by applying an external force. The volume of the wire is 600 × 10^-6 m^3. The elastic potential…

A copper wire of length $\displaystyle 3$ m is stretched by $\displaystyle 3$ mm by applying an external force. The volume of the wire is $\displaystyle 600 \times 10^{-6} \mathrm{~m}^3$. The elastic potential energy stored in the wire in stretched condition would be $\displaystyle \_\_\_\_$J. $\displaystyle \left(\right.$ Given Young modulus of copper $\displaystyle \left.=1.1 \times 10^{11} \mathrm{~N} / \mathrm{m}^2\right)$