Electrical Conductor

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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 ?
Choosing a conductor material depends largely on the material's performance during specific applications.
Maxwell, in which he was the first who showed that there is a contraction resistance in nature, except the widely-known volume electric resistance of a conductor material.
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Exhibit 2-2: Transparent Conductor Material Types, Typical Characteristics, Advantages, and Disadvantages
It is the ultimate semi conductor material for the future of microelectronics and computers.
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The research team will develop applications using novel, sustainable transparent conductor materials as an alternative to conventional ITO-based materials.
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