1. Conductive quality; power of conducting heat, electricity, etc.; especially, with reference to its degree.
2. The conductibility of a structure, especially the ability of a nerve to transmit a wave of excitation in the body.

A resistance-bridge instrument used to measure the electrical conductivity of solutions, slurries (suspension of solid particles in a liquid), or wet solids.

1. The ratio of the electric current density to the electric field in a material.
2. The ability of a material to conduct electricity.

Metals are usually good conductors and nonmetals are poor conductors.

3. The measure of a material's ability to carry an electric current.

An electric conductor is a material that, when placed between terminals having a difference of electrical potential, will readily permit the passage of an electric current.

Different materials have different degrees of conductivity, and their effectiveness is computed as the conductivity.

The best conductors are the metals; such as, silver, copper, aluminum, platinum, and mercury; however, nonmetallic substances: such as, carbon, saline solutions, and moist earth are also sufficiently conductive so that such properties are significant in certain situations.

Because of their cost and conductivity characteristics, copper and aluminum are widely used as conductors.

Copper is used more often than aluminum and its use is preferred for high-voltage transmission than aluminum, because of its lighter weight is a definite advantage.

Steel as a conductor is inferior to the other two materials mentioned; however its greater strength and resistance to wear have led to its choice as a conductor for special purposes; such as, that of power rail services on electrified railways, and as an inner core of copper or aluminum cables.

1. The ability of charged particles to move through a medium.
2. The conductivity of a medium in which the transport of electric charges, under electric potential differences, is by particles of atomic or larger size.

1. In a multimode display-storage tube, a process in which an electron gun is used to erase the image on a cathode-ray tube interface.
2. A method of writing and storing large numbers of information elements electrostatically on the storage tape of a television information storage tube.

A dielectric-coated optical grating on the tape is bombarded with 10-keV electrons to induce momentary conductivity.

This causes electrons to flow fro the dielectric to the metal base of the tape.

Elemental areas on the surface of the tape lose charge in proportion to light from corresponding elemental areas of the image being stored.

The part of the thermal conductivity resulting from the transfer of thermal energy by means of electrons and holes (mobile vacancies that act like positive electronic charges with positive masses).

The ability of a system to conduct heat, usually measured in units of thermal conductance.