Physics - Magnetism Question with Solution | TestHub

A particle of charge $-16\times 10^{-18}$ coulomb moving with velocity $10{\mathrm{ms}}^{-1}$ along the $\mathrm{x}$-axis enters a region where a magnetic field of induction $\mathrm{B}$ is along the $\mathrm{y}$-axis, and an electric field of magnitude $10^4\mathrm{V}/\mathrm{m}$ is along the negative z-axis. If the charged particle continues moving along the $\mathrm{x}$-axis, the magnitude of $\mathrm{B}$ is