resistivity
Noun
Meaning
a material's opposition to the flow of electric current; measured in ohms
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Examples
A constant direct current has a zero rate-of-change, and sees an inductor as a short-circuit (it is typically made from a material with a low resistivity ).
Although skin effect limits Tesla currents to the outer fraction of an inch in metal conductors, the ' skin depth ' of human flesh is deeper than that of a metallic conductor due to higher resistivity and lower permittivity.
At 1 GHz the resistivity has increased to 0.1 ohms/inch.
Definitions The reciprocal of thermal conductivity is thermal resistivity, usually expressed in kelvin-meters per watt (K·m·W −1 ).
Geophysicists can also provide the electric current themselves (see induced polarization and electrical resistivity tomography ).
Examples of its occurrence include fluctuations in tide and river heights, quasar light emissions, heart beat, firings of single neurons, and resistivity in solid state devices.