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electric current
(redirected from Electrical current)

    Also found in: Wikipedia, Hutchinson 0.03 sec.
electric current: see electricity electricity, class of phenomena arising from the existence of charge . The basic unit of charge is that on the proton or electron —the proton's charge is designated as positive while the electron's is negative.
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electric current

Movement of electric charge carriers. In a wire, electric current is a flow of electrons that have been dislodged from atoms and is a measure of the quantity of electrical charge passing any point of the wire per unit time. Current in gases and liquids generally consists of a flow of positive ions in one direction together with a flow of negative ions in the opposite direction. Conventionally, the direction of electric current is that of the flow of the positive ions. In alternating current (AC) the motion of the charges is periodically reversed; in direct current (DC) it is not. A common unit of current is the ampere, a flow of one coulomb of charge per second, or 6.24 × 1018 electrons per second.
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Application of a gentle electrical current to the scalp, which nudges sleepers into a particular phase of sleep, boosts recall the next day for recently learned facts, say neuroscientist Jan Born of the University of Lubeck in Germany and his colleagues.
Revving up recall while fast asleep by Science News
The benefits to automakers are numerous, including reduced packaging size, improved reliability (the average LED has a life of 10,000 hours, compared to 1,000 hrs for an incandescent bulb), fuel economy benefits from lower electrical current usage and weight reductions, along with increased options in lighting design.
Seeing the light by Automotive Design & Production
The Electrodeposition painting process involves vehicle bodies being immersed in a paint tank, with an electrical current passing through the steel parts causing the paint to adhere to the metal surfaces.
Mazda Adopts More Eco-Friendly Painting Process by JCN Newswires
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