Physics - Magnetism Question with Solution | TestHub

A particle of charge $16\times 10^{-16}\mathrm{C}$ moving with velocity $10{\mathrm{ms}}^{-1}$ along $x$-axis enters a region where magnetic field of induction $\vec{B}$ is along the $y$-axis and an electric field of magnitude $10^4{\mathrm{Vm}}^{-1}$ is along the negative $z$-axis. If the charged particle continues moving along $x$-axis, the magnitude of $\vec{B}$ is :