AP EAMCET20225 Jul 2022Evening ShiftPhysicsMagnetic Properties of MatterActual
A short bar magnet placed with its axis at 45^ with a uniform external magnetic field of 28.3 10⁻³ ~T experiences a torque of magnitude equal to 3.6 10⁻⁵ ~J . The magnitude of magnetic moment of the magnet is nearly
Options
- A1.8 10⁻³ ~J ~T ⁻¹
- B1.2 10⁻³ ~J ~T ⁻¹
- C2.4 10⁻³ ~J ~T ⁻¹
- D1.6 10⁻³ ~J ~T ⁻¹
Correct answer
A. 1.8 10⁻³ ~J ~T ⁻¹
Step-by-step solution
We know that = MB M = B 45^ = 3.6 10⁻⁵ 28.3 10⁻³ 1 2 =1.8 10⁻³ ~J ~T ⁻¹