Direct Current DC
Direct current describes a constant flow of electric charge (electrons) that flows from the negative to the positive. The charges flow in the same direction (in alternating current* , the charges move sequentially in alternate directions).
Direct current is generally produced by batteries, static and lightning. Direct current was previously known as Galvanic Current.
It was first developed for use in power generation by Edison*, but it failed because its major drawback was that after about a mile it would lose voltage, so it was not ideal for electricity supply over distance, compared with alternating current, which did not lose power during transmission.
ONELINER: Direct current
OTHER CONNECTIONS: None
BIBLIOGRAPHY:
EB