The magnetic potential energy, when a magnetic bar of magnetic moment $\vec{m}$ is placed perpendicular to the magnetic field $\vec{B}$ is

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Aicharya · Accepted Answer

Potential energy stored in external magnetic field is given by $U=-\vec{m} \cdot \vec{B}$ $\because$ Angle between $\vec{m}$ and $\vec{B}$ is $90^{\circ}$ $	herefore \quad U=-m B \cos 90^{\circ}$ $=0$ :

The magnetic potential energy, when a magnetic bar of magnetic moment $\vec{m}$ is placed perpendicular to…

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