On the magnetic dipole energy expression of an arbitrary current distribution

Keeyung Lee

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arXiv · 1210.3925

On the magnetic dipole energy expression of an arbitrary current distribution

Keeyung Lee

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Abstract

We show that the magnetic dipole energy term appearing in the expansion of the magnetic potential energy of a localized current distribution has the form $ U= + \bf{m} \cdot \bf{B}$ which is wrong by a sign from the well known $ - \bf{m} \cdot \bf{B}$ expression. Implication of this result in relation to the electric dipole energy $ - \bf{p} \cdot \bf{E}$, and the force and torque on the magnetic dipole based on this energy expression is also discussed.

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Keeyung Lee. 2012-10-15. On the magnetic dipole energy expression of an arbitrary current distribution. https://arxiv.org/abs/1210.3925

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