Origin of direct current
Examples from the Web for direct current
Historical Examples of direct current
It will be necessary to obtain the use of a direct-current ammeter for this purpose.The Boy Mechanic, Book 2
This arrangement can be used with direct-current circuits only.Motion Picture Operation, Stage Electrics and Illusions
Henry C. Horstmann
The engine is belted to a direct-current generator of the shunt-wound type.Farm Mechanics
Herbert A. Shearer
This humming sound is quite different from the occasional hissing of a direct-current arc.
The alternating-current arc-lamp was developed after the appearance of the direct-current open-arc and has been widely used.