# current

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## current

1. a mass of air, body of water, etc., that has a steady flow in a particular direction
2. the rate of flow of such a mass
3. Physics
a. a flow of electric charge through a conductor
b. the rate of flow of this charge. It is measured in amperes
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

## Current

(i), a scalar quantity characterizing the time rate of flow of electric charge. It is equal to the ratio of the charge Δq transported through the cross section of a conductor in the time Δt to the time: i = Δqt. The unit of current is the ampere. Current is measured by means of ammeters.

## current

[′kər·ənt]
(electricity)
The net transfer of electric charge per unit time; a specialization of the physics definition. Also known as electric current.
(physics)
The rate of flow of any conserved, indestructible quantity across a surface per unit time.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

## current

The flow of electricity in a circuit; the unit of measurement is the ampere.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

## current

i. A pilot qualified on a type of aircraft and presently cleared to fly without any additional checks.
ii. A civil aircraft that is on active register and in routine operation.

## current

(electronics)
The quantity of charge per unit time, measured in Amperes (Amps, A). By historical convention, the sign of current is positive for currents flowing from positive to negative potential, but experience indicates that electrons are negatively charged and flow in the opposite direction.