Definition:Volt

Definition

It is defined as being the difference in electric potential between two points of an electrical conductor:

when an electric current of $1$ ampere dissipates $1$ watt of power between those points

that will impart $1$ joule of energy per coulomb of electric charge that passes through it.

$\mathrm V$

The symbol for the volt is $\mathrm V$.

Its $\LaTeX$ code is \mathrm V .

The SI base units of the volt are:

$\mathrm V := \mathrm {kg} \, \mathrm m^2 \mathrm s^{-3} \mathrm A^{-1}$

where:

$\mathrm {kg}$ denotes kilograms

$\mathrm m$ denotes metres

$\mathrm s$ denotes seconds (of time).

$\mathrm A$ denotes ampere.

This arises from its definition as:

$\mathrm J \, \mathrm C^{-1}$, that is: joules per coulomb

which is also presentable as:

$\mathrm W \, \mathrm A^{-1}$, that is: watts per ampere.