Q. A small magnet of dipole moment M is kept on the arm of a deflection magnetometer sat in tan A position at a distance of 0.2 m. If the deflection is 60°, the value of M is (BH = 0.4 × 10-4 T)
β
Correct Answer: (B)
0.77 Am²
Explanation: the right answer is 2.77Am^2 .
Explanation by: Spy
the right answer is 2.77Am^2 .