DIRECTCURRENT

Direct current

Direct current is the unidirectional flow of electric charge. Direct current is produced by sources such as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current . A term formerly used for direct current was galvanic current.

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direct current

Noun

 (abbreviated as DC)
  1. an electric circuit in which voltage and current do not vary with time
  2. an electric current in which the electrons flow in one direction, but may vary with time


The above text is a snippet from Wiktionary: direct current
and as such is available under the Creative Commons Attribution/Share-Alike License.

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