Electrical Conductor


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Related to Electrical Conductor: electrical resistance, Electrical conductivity

Conductor, Electrical

 

a material that readily permits the passage of an electric current through it—that is, a material that has a high electrical conductivity, or low resistivity ρ. Good conductors are materials with ρ ≤ 10-6 ohm-cm. In contrast to conductors, insulators have high resistivities—from about 1014 to 1022 ohm-cm. Semiconductors occupy an intermediate position.

Electrical conductivity is determined by the concentration and mobility of the charge carriers. Conductors include metals, electrolytes, and plasmas. In metals, the charge carriers are quasi-free conduction electrons. In electrolytes, the current is produced by positive and negative ions. In a plasma, the current is carried by free electrons and positive and negative ions. At low temperatures, many metals and some semiconductors become superconductors.

References in periodicals archive ?
The majority of Riata and Riata ST leads, including those that show signs of electrical conductor migration or externalization, continue to function normally and provide life-saving support for patients," said Dr.
Key statement: An implantable electrical medical lead for a pulse generator includes a distal electrode, a connector for electrical connection with the pulse generator, an electrical conductor within the lead extending between the connector and the distal electrode, and an insulating sheath of flexible resilient material normally covering the electrical conductor having self sealing properties to re-insulate the electrical conductor in the event a rupture of the sheath should occur which exposes the electrical conductor.
An inquest heard that the 33-year-old, who used to live in Rowley Regis and Quinton, died on March 28 last year because a faulty heater and a lack of earth bonding under the enamel bath combined to turn the metal bath taps into a live electrical conductor.
The minimum electrical conductor spacing defined in IPC-2221 is not based on metal migration failure mechanisms.
The coating on one of the buildings is a better electrical conductor, which means it reflects more sunshine and radio waves than does the tinting of the other building.
Heat-treating also varies the foam's properties--with normal treatment, CFOAM is a thermal insulator and electrical conductor.
Electrical conductor theory describes the relationship of impedance to conductor volume as Z = rho [L.
The damage to the protective insulation covering the splice in the electrical conductor, identified as cable B, allowed moisture to reach the crimp connector, causing corrosion that increased electrical resistance between the crimp connector and the cable sufficient to cause the splice to overheat and fail.
The damage to the protective insulation covering the splice in the electrical conductor identified as cable B allowed moisture to reach the crimp connector, causing corrosion that increased electrical resistance between the crimp connector and the cable sufficient to cause the splice to overheat and fail.
Microprocessors built with copper provide superior performance to those that contain traditional aluminum because copper is a better electrical conductor than aluminum.
The continuous, joint-free electrical conductor eliminates the major weakness of conventional systems.

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