|Authors||Benjamin W. Sturtz|
|License||CC BY-SA 4.0|
|Translate to||Français, Español, Kiswahili, 中文, العربية, Русский, more|
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|Cite as Benjamin W. Sturtz (2021). "Direct current". Appropedia. Retrieved 2021-10-25.|
Direct current (DC or "continuous current") is the unidirectional flow of electric charge. Direct current is produced by such sources 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 be through semiconductors, insulators, or even through a vacuum as in electron or ion beams. In direct current, the electric charges flow in the same direction, distinguishing it from alternating current (AC). A term formerly used for direct current was Galvanic current.
Alternating current (AC) and direct current (DC) are the 2 main types of currents used in electrical circuits.