## Abstract

We have shown in Chapter 2 that Maxwell’s equations can be divided into two groups based on the separation of electric and magnetic properties. A special subset of Maxwell’s equations consists of the equations \(\nabla \times H = J\)\(\nabla \cdot B = 0\)\(\nabla \times E = - \frac{{\partial B}}{{\partial t}}\)

If the equations are independent of time, we have

$$\nabla \times H = J$$

(4.1)

$$\nabla \cdot B = 0$$

(4.2)

$$\nabla \times E = 0$$

(4.3)

These equations are accompanied by the constitutive relations
This subset of equations describes the phenomena associated with magnetostatics.

$$B = \mu H$$

(4.4)

$$J = \sigma E$$

(4.5)

## Keywords

Permanent Magnet Field Intensity Relative Permeability Magnetic Circuit Ferromagnetic Material
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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## Copyright information

© Springer-Verlag New York, Inc. 1997