Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

resistivity
(1) the product of the resistance of a given material sample times the ratio of its cross-sectional area to its length.

(2) an electrical material property described by a tensor constant indicating the impedance of free electron flow in the material. Resistivity relates the electric field strength to the conduction current, and can be expressed as the inverse of the conductivity.
water resistivity
a measure of the purity of cooling liquid for a power tube, typically measured in megohms per centimeter.
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