Definition:Weber (Unit)

From ProofWiki
Jump to navigation Jump to search

Definition

The weber is the SI unit of magnetic flux.


It is defined as the total magnetic flux density through a $1 \ \mathrm m^2$ area of space.

That is, it is equal to the magnetic flux that, when linking a current loop, produces an electromotive force of $1$ volt as it is reduced to zero at a uniform rate in $1$ second.


Symbol

$\mathrm {Wb}$

The symbol for the weber is $\mathrm {Wb}$.


Its $\LaTeX$ code is \mathrm {Wb} .


Base Units

The SI base units of the weber are:

$\mathrm {Wb} := \mathrm {kg} \, \mathrm m^2 \, \mathrm s^{-2} \mathrm A^{-1}$

where:

$\mathrm {kg}$ denotes kilogram
$\mathrm m$ denotes metre
$\mathrm s$ denotes seconds (of time)
$\mathrm A$ denotes amperes.


This arises from its derivation as the $\mathrm T \, \mathrm m^2$ tesla-square metre.


Source of Name

This entry was named for Wilhelm Eduard Weber.


Sources