Overheard: Word of the Day

May 23 2012   11:38AM GMT

Overheard talking about coaxial cables

Margaret Rouse Margaret Rouse Profile: Margaret Rouse

Coaxial cables use a single copper conductor at the center, insulated by a plastic layer and a braided metal shield, which blocks interference. Coaxial cables are hard to install, but can support greater cable lengths than twisted pair.” — Carrie Higbie

Today’s WhatIs.com Word of the Day is conductor. Conductivity, in general, is the capacity to transmit something, such as electricity or heat.

An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. A substance that does not conduct electricity is called an insulator or dielectric material.

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