Weber (unit)
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In physics, the weber (symbol: Wb) is the SI derived unit of magnetic flux. It is named after the German physicist Wilhelm Eduard Weber (1804 - 1891).
The weber may be defined in terms of Faraday's law, which relates a changing magnetic flux through a loop to the electric field around the loop. A change in flux of one weber per second will induce an emf of one volt.
In SI base units, the dimensions of the weber are kg·m2·s-2·A-1. In derived units, they are volt-seconds (V·s).
The weber is a large unit, equal to 1 T m2 = <math>10^8<math> maxwells.
| SI electromagnetism units edit (http://wikipedia.cas.ilstu.edu/index.php?title=Template:SI_electromagnetism_units&action=edit) | |||
|---|---|---|---|
| Name | Symbol | Dimensions | Quantity |
| ampere (SI base unit) | A | A | Current |
| coulomb | C | A·s | Electric charge, Quantity of electricity |
| volt | V | J/C = kg·m2·s−3·A−1 | Potential difference |
| ohm | Ω | V/A = kg·m2·s−3·A−2 | Resistance, Impedance, Reactance |
| ohm metre | Ω·m | kg·m3·s−3·A−2 | Resistivity |
| watt | W | V·A = kg·m2·s−3 | Electrical power |
| farad | F | C/V = kg−1·m−2·A2·s4 | Capacitance |
| farad per metre | F/m | kg−1·m−3·A2·s4 | Permittivity |
| reciprocal farad | F−1 | kg1·m2·A−2·s−4 | Elastance |
| siemens | S | Ω−1 = kg−1·m−2·s3·A2 | Conductance, Admittance, Susceptance |
| siemens per metre | S/m | kg−1·m−3·s3·A2 | Conductivity |
| weber | Wb | V·s = kg·m2·s−2·A−1 | Magnetic flux |
| tesla | T | Wb/m2 = kg·s−2·A−1 | Magnetic flux density |
| ampere per metre | A/m | m−1·A | magnetic induction |
| ampere-turns per weber | A/Wb | kg−1·m−2·s2·A2 | Reluctance |
| henry | H | Wb/A = V·s/A = kg·m2·s−2·A−2 | Inductance |
| henry per metre | H/m | kg·m·s−2·A−2 | Permeability |
| (dimensionless) | χ | - | Magnetic susceptibility |
es:Weber fi:Weber fr:Weber (unité) it:Weber nl:Weber pl:Weber pt:Weber sr:Вебер (јединица) sv:Weber
