The term DC or direct current is really a little misleading, However DC refers to the potential difference in an electrical charge from positive + to negative -. In the case of direct current the...
Because of the chemicals and metals which are used to make it, a battery can only produce dc (direct current). For the same reason a battery cannot produce ac (alternating current) on its own, but it...
dc is an abbreviation for direct current. The term dc current is sort of wrong it's a bit like saying something twice for no reason. It might be better to say dc electricity rather than dc current....
Alternate current (also known as AC) is a current that moves back and forth in the wire, while a direct current (also know as DC) moves in only one direction in the wire.
The term is alternating...