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7.7: Potential Energy of a Magnet or a Coil in a Magnetic Field

Last updated

Mar 5, 2022
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- 7.6: Period of Oscillation of a Magnet or a Coil in an External Magnetic Field
- 7.8: Moving-coil Ammeter

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$E = \text{constant} - \textbf{p}_m \cdot \textbf{B}. \label{7.7.1}$

For a derivation of this, see the derivation in Section 3.4 for the potential energy of an electric dipole in an electric field. Also, verify that the dimensions of the right hand side of Equation $\ref{7.7.1}$ are $\text{ML}^2 \text{T}^{−2}$ (energy).

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