Electrical Conductivity,
styczeń 2010 r.
:
Electrical conductivity or specific conductance is a measure of a material's ability to conduct an electric current. When an electrical potential difference is placed across a conductor, its movable charges flow, giving rise to an electric current. The conductivity s is defined as the ratio of the current density J to the electric field strength E: It is also possible to have materials in which the conductivity is anisotropic, in which case s is a 3
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