0 electrical current that moves in one direction only --
1 electric current that moves only in one direction, like the electricity that comes from a battery --
The switches of the direct current circuits are hand-operated and are located upon boards at the right and left of the control board.
The presence of the condenser precludes the possibility of direct current flowing in this path.
How does a conductor behave in connection with direct current and how with alternating current?
Electrical power is supplied to single-trolley railroads principally in the form of direct current.
All our transmission is done at high voltage direct current.
