An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is defined as the net rate of flow of electric charge through a surface. The moving particles are called See more

The conventional direction of current, also known as conventional current, is arbitrarily defined as the direction in which positive charges … See more

In alternating current (AC) systems, the movement of electric charge periodically reverses direction. AC is the form of electric power most commonly delivered to businesses and residences. The usual waveform of an AC power circuit is a sine wave See more

Current can be measured using an ammeter. While a galvanometer offers direct electric current measurement, it requires breaking the electrical circuit, which can be … See more

The conventional symbol for current is I, which originates from the French phrase intensité du courant, (current intensity). Current intensity is … See more

Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two … See more

Natural observable examples of electric current include lightning, static electric discharge, and the solar wind, the source of the polar auroras.
Man-made … See more