No one discovered it, it was invented.
No one discovered it, it was invented.
direct current.
There is only one type of direct current and its 'frequency' is zero.
direct current
Alternating current. Direct current is used in batteries.
direct current
Alternating current is better than direct current for transmission.
Volts direct current eg battery As opossd to Vac wich is volts altinating current eg mains supply
The battery in an automobile furnishes direct current.
direct came first
A direct current (DC) is the continuous flow of electric current that circulates in one direction and keep the same polarity (positive or negative). Example of direct current are batteries and generators. There are electronic devices, like computers, that work with direct current, but they require of some additions to convert alternating current to direct current.
Power lines carry electricity as alternating current.