The Ampere is the SI base unit of electric current. Electric current is a measure of the flow of electric charge in a system. This current is most commonly transferred through wires, but is not limited to them. One ampere is a flow of one coulomb of charge through a point or area in one second.

The ampere is a fairly large current, often referred to as an 'amp'. Most household circuitry takes less than an amp of current to run. See household electricity usage for more information.

Figure 1. For a current of 1 Ampere 6 quintilian electrons would pass by a point in one second.

The ampere is one of the 7 fundamental SI units, to read more about Amperes here.

For Further Reading

For further information please see the related pages below:


Authors and Editors

Bethel Afework, Jordan Hanania, James Jenden, Kailyn Stenhouse, Jason Donev
Last updated: May 18, 2018
Get Citation