# specific resistance

## Definition

### Electronics

- A measure of the inherent ability of a material to
__resist__ the __flow__ of current. It is the reciprocal of electrical conductivity, and depending on their resistivities, materials can be classified as insulators, semiconductors, or conductors. The lower the specific resistance, the better conductor a material is. Its __formula__ is: r = RA/L, where r is resistivity in ohm-meters, *R* is the resistance in ohms, *A* is the cross-sectional area of the material in __square__ meters, and *L* is its __length__ in meters. Also called resistivity, or __electric__ resistivity.

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