Perfect conductor - 2 reference results
A perfect conductor is an electrical conductor with no resistivity. The concept is used to model systems in which the electrical resistance or resistivity is negligible compared to other effects. One such model is ideal magnetohydrodynamics, the study of perfectly conductive fluids. Another example is electrical circuit diagrams, which carry the implicit assumption that the wires connecting the components have no resistance.
All known perfect conductors are also superconductors: in addition to having no electrical resistance they exhibit quantum effects such as the Meissner effect and quantization of magnetic flux. Because by applying magnetic field to perfect conductor we have completely exact field inside the perfect conductor as outside, but inside superconductor the magnetic flux is zero.
A perfect conductor without those properties is known as a classical superconductor, but that phrase is ambiguous as it is also used in some communities to distinguish between conventional superconductors and high-temperature superconductors.
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Last updated on Tuesday September 16, 2008 at 04:47:49 PDT (GMT -0700)
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This article is licensed under the GNU Free Documentation License.
Last updated on Tuesday September 16, 2008 at 04:47:49 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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