The variation of applied potential and current flowing through a given wire is shown in figure. The length of wire is 31.4 cm . The diameter of wire is measured as 2.4 cm . The resistivity of the given wire is measured as x $x 10^{-3} \Omega \mathrm{~cm}$. The value of $x$ is $\_\_\_\_$ [Take $\pi=3.14]$