Even though today most of the electricity transmission lines are alternating current ones, in some cases direct current lines are also used. Scientists have been working to improve the technology ...

There are two main types of electrical current that flow through your home: Alternating and direct. The vast majority of devices around you are powered by alternating current. By allowing electrons to ...

Used to deliver power to your home, office, and any other building you can think of, alternating current (AC) voltage is relied on to provide power flawlessly on a daily basis. But why isn’t direct ...

Tesla's alternating current transformed life in the 20th century. Premieres 10/18 on PBS. Direct current required thousands of little power plants at every mile, while alternating current allowed one ...