MCQ
A current carrying coil is placed with its axis perpendicular to N-S direction. Let horizontal component of earth's magnetic field be $\mathrm{H}_{\mathrm{o}}$ and magnetic field inside the loop is H. If a magnet is suspended inside the loop, it makes angle θ with H. Then θ =
- ✓$\tan ^{-1}\left(\frac{\mathrm{H}_{\mathrm{o}}}{\mathrm{H}}\right)$
- B$\tan ^{-1}\left(\frac{\mathrm{H}}{\mathrm{H}_\mathrm{o}}\right)$
- C$\operatorname{cosec}^{-1}\left(\frac{\mathrm{H}}{\mathrm{H}_\mathrm{o}}\right)$
- D$\cot ^{-1}\left(\frac{\mathrm{H}_\mathrm{o}}{\mathrm{H}}\right)$
