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An extension cord (also known as a power extender or an extension lead) is a length of flexible electrical cable (flex) with a plug on one end and one or more sockets on the other end (usually of the same type as the plug). The term usually refers to mains extensions but is also used to refer to extensions for other types of cabling.

A power strip is a block on the end of a cable with a number of sockets (usually 3 or more), often arranged in a line. This term is also used to refer to the whole unit of a short extension cord terminating in a power strip.

An extension reel is an extension lead that rolls up, usually into the socket end, which in most cases has more than one socket on it (often 2 or 4).

A power cord is similar but the socket end is designed to mount with a panel plug (usually IEC or figure 8 style) and is usually much shorter.

Extension cords may refer to cables that transmit data, electricity, or both (e.g. USB extension cable).

1 See also

computer table
retractable

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Topics: Extension Cable Power Refer Cord Plug Socket Strip Sockets Lead...

ExtensionIn metaphysics, extension is the property of taking up space; see Extension (metaphysics). In semantics (with applications to both philosophy and mathematics), extension is the set of things to which a property applies; see Extension (semantics). In mathe	Extension (metaphysics)In metaphysics, extension is, roughly speaking, the property of "taking up space". Rene Descartes defines extension as the property of existing in more than one dimension. For Descartes, the primary characteristic of matter is extension, just as the prima	Extension (semantics)The extension of an idea or (linguistic) expression consists of the things that it applies to; it contrasts with intension. This general notion is from semantics, and has been applied to some other fields. In mathematics In mathematics, the extension of a
Extension problemIn group theory, if the factor group G ''K is isomorphic to H one says that G is an extension of K by H''. To consider some examples, if G H × K then G is an extension of both H and K''. More generally, if G is a semidirect product of K and H then G is an	Extension Service of the USDAThe Extension Service of the USDA administers funding for Smith Lever Act services, in cooperation with the state governments. See also: US Department of Agriculture U. of Agriculture.	EXTension PortThe EXTension Port of the Nintendo 64 game console, is found on its bottom side. It reads "EXT. and stands for extension. It is a cartridge drive but with a slightly different interface than the one above on the main deck. It has the same number of pins a
Extensionality	Extension (computing)	Extension (algebra)
Extensional definition	Extension language	Extension cable
Extension of Remarks

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