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Constant resistivity
Presentation
This model defines a conductive isotropic or anisotropic material by its constant resistivity, which corresponds to a linear J(E) dependence.
Mathematical model
In terms of the J(E) characteristic, this model is a straight line.
The corresponding mathematical formula is written:
J(E) = (1 / ρ )E
where: ρ is the resistivity of material [Ω.m]
Anisotropic material
For an anisotropic material, this linear model consists of a group of three resistivity values.