\begin{definition}[Definition:Resistance/Unit]
The unit of measurement of '''resistance'''  is the ohm $\Omega$:
:$1 \ \Omega = 1 \ \mathrm{V} \ \mathrm{A}^{-1}$
that is, $1$ volt per ampere.
Category:Definitions/Units of Measurement
Category:Definitions/Resistance
\end{definition}