Physics - Magnetism Question with Solution | TestHub

In the given figure magnetic field at the center of ring$\mathrm{O}$is$\frac{8}{\sqrt{2}} \mathrm{T}$. Now it is turned through$90°$about$\mathrm{xx}\text{'}$axis, so that two semicircular parts are mutually perpendicular. The new value of magnetic field (in Tesla) at centre is$\sqrt{n}$. Find$n$.