Meaning & Definition of word "Ampere"

Ampere

ˈamˌpēr

noun:

  • 1. One of the fundamental units in the International System of Units (SI).
    • Example: Electricians often measure the current in amperes to ensure safety in installations.
  • 2. 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.
    • Example: The circuit requires a current of 5 amperes for optimal performance.
  • 3. A specific measure of electric current.
    • Example: The light bulb operates at a current of 0.5 amperes.
  • 4. A unit used in electrical engineering to quantify current.
    • Example: To calculate the power consumption, multiply the voltage by the current in amperes.
  • 5. The amount of electric charge in coulombs flowing through a conductor per unit time.
    • Example: A device may be rated for a maximum of 10 amperes to prevent overheating.

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

volt:

The unit of electric potential.

ohm:

The unit of electrical resistance.

coulomb:

The unit of electric charge.

Slang Meanings of ampere