Capacitor - Research Article from World of Invention

This encyclopedia article consists of approximately 3 pages of information about Capacitor.
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A capacitor is an electrical device that can store electrical energy. In this way it is like a battery; however, unlike a battery, a capacitor has the property of capacitance, which is the ability to store electric charge and let it out all at once, and it can resist changes of voltage across its terminals. Capicatance is measures in units of farads, though typical capacitors have values of picofarads, one trillionth of a farad.

A capacitor consists of two conductors that are separated by a dielectric (insulator). The larger the surface area of the conductors and the smaller the separation between them, the larger the capacitance will be. There are two main types of capacitors--variable (which are tunable) and fixed (which have a single, fixed capacitance). Fixed capacitors, which comprise the lion's share of the market, come in two types: electrolytic and non-electrolytic.

The origin of the capacitor...

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This section contains 861 words
(approx. 3 pages at 300 words per page)
Buy the Capacitor Encyclopedia Article
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Capacitor from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
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