Ampere

ˈamˌpēr

Meaning & Definition

noun
The ampere, often abbreviated as 'A', is the SI base unit of electric current, defined as the flow of electric charge across a surface at the rate of one coulomb per second.
The circuit requires a current of 5 amperes for optimal performance.
A specific measure of electric current.
The light bulb operates at a current of 0.5 amperes.
A unit used in electrical engineering to quantify current.
To calculate the power consumption, multiply the voltage by the current in amperes.
The amount of electric charge in coulombs flowing through a conductor per unit time.
A device may be rated for a maximum of 10 amperes to prevent overheating.
One of the fundamental units in the International System of Units (SI).
Electricians often measure the current in amperes to ensure safety in installations.

Etymology

Named after André-Marie Ampère, a French physicist.

Common Phrases and Expressions

milliampere:
One thousandth of an ampere.
kiloampere:
One thousand amperes.
microampere:
One millionth of an ampere.

Related Words

Slang Meanings