An infinite long straight wire having a charge density λ is kept along y^′ y axis in x -y plane. The Coulomb force on a point charge q at a point P…

An infinite long straight wire having a charge density $\displaystyle \lambda$ is kept along $\displaystyle \mathrm{y}^{\prime} \mathrm{y}$ axis in $\displaystyle x$-y plane. The Coulomb force on a point charge q at a point $\displaystyle \mathrm{P}(x, 0)$ will be