Question

The potential energy of a bar magnet of magnetic moment $M$ placed in a magnetic field of induction $B$. The position of stable equilibrium of the magnet is at the angular position given by $\theta$ equal to:

[where $\theta$ is the angle between B and M]

• A. $0^o$
• B. ${90}^o$
• C. ${45}^o$
• D. ${180}^o$

Answer 1

The correct option is A $0^o$