A long rigid wire lies along the $\text{X}$- axis and carries a current of $10 \text{A}$ in the positive $\text{X}$- direction. Round the wire, the external magnetic field is $\overrightarrow{B}=\hat{\mathrm{i}}+2x^2\hat{\mathrm{j}}$ with $x$ in meters and $B$ in Tesla. The magnetic force (in $\text{S}\text{I}$ units) on the segment of the wire between $x=1 \text{m}$ and $x=\mathrm{4 }\text{m}$ is