<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Relevant discussion may be found on the talk page . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (July 2015) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Relevant discussion may be found on the talk page . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (July 2015) (Learn how and when to remove this template message) </Td> </Tr> <P> The word electricity refers generally to the movement of electrons (or other charge carriers) through a conductor in the presence of potential and an electric field . The speed of this flow has multiple meanings . In everyday electrical and electronic devices, the signals or energy travel as electromagnetic waves typically on the order of 50%--99% of the speed of light, while the electrons themselves move (drift) much more slowly . </P> <P> The speed at which energy or signals travel down a cable is actually the speed of the electromagnetic wave in the insulating material between the conductors, not the movement of electrons . Electromagnetic wave propagation is fast and depends on both the permeability and the permittivity of the insulating material, which may also be referred to as the dielectric . When the insulator is vacuum, the wave travels at the speed of light and almost that fast when air is the insulator . </P>

Does electron travel at the speed of light
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