Electric current is the flow of electric charge through a conductor, such as a wire.
The unit of measurement for electric current is the ampere (A).
The flow of current is caused by the movement of electrons, which are negatively charged particles.
The direction of current flow is conventionally defined as the direction that a positive charge would move.
The flow of current can generate heat and cause chemical reactions.
Electric current can be direct (DC) or alternating (AC). DC flows in one direction, while AC changes direction periodically.
The most common type of AC current used in households is called 60-hertz AC, which means the current changes direction 60 times per second.
The electrical current in a circuit can be controlled using devices such as switches, resistors, and transistors.
Electric current can be used to power a wide range of devices, from small appliances to large industrial machines.
The discovery of electric current is credited to Alessandro Volta, who in 1800 developed the first electric battery, called the Voltaic Pile.
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