Physics - Magnetism Question with Solution | TestHub

A 2 A current carrying straight metal wire of resistance $1\Omega$, resistivity $2\times 10^{-6}\Omega \mathrm{m}$, area of cross-section $10{\mathrm{mm}}^2$ and mass $500\mathrm{g}$ is suspended horizontally in mid air by applying a uniform magnetic field $\vec{B}$. The magnitude of $B$ is _____$\times 10^{-1}\mathrm{T}$ (given, $\mathrm{g}=10\mathrm{m}/{\mathrm{s}}^2$ ).