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MAGNETIC FORCES IN AND ON A MAGNET

机译:磁力进入磁铁

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摘要

Given the shape of a magnet and its magnetization, point by point, which force does it exert on itself, also point by point? We explain what 'force' means in such a context and how to define it by using the Virtual Power Principle. Mathematically speaking, this force is a vector-valued distribution, with Dirac-like concentrations on surfaces across which the magnetization is discontinuous, i.e., material interfaces. To find these concentrations, we express the force as the divergence of a (symmetric) 2-tensor which generalizes a little the classical Maxwell tensor.
机译:鉴于磁铁的形状及其磁化,点按点,它自身发挥作用,也点数点?我们解释在这样的语境中的“力量”是什么意思,以及如何通过使用虚拟电源原理来定义它。在数学上讲,该力是矢量值分布,磁化强度在磁化的表面上具有较阳性浓度,即材料界面。为了找到这些浓度,我们将力量表达为(对称)2-张量的发散,它概括了一点古典麦克斯韦张量。

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