Ampere (A)

Also known as Amp.

The unit of measurement of electric current, named after French physicist Andre M Ampère 1836. It is the amount of current that will flow through a resistance of one ohm under pressure of one volt. It is also equal to the flow of one coulomb per second.

An Amp is proportional to the quantity of electrons flowing through a conductor past a given point in one second. It is analogous to cubic feet of water flowing per second. It is an indication of how much electricity an appliance will use, or a circuit (fuse, cable, connectors etc) can handle.