# Electric current can be defined as - Electric Current Definition, Formula, Unit and Circuit Diagram

### Electric current

The symbol for electric current is I.

For instance, is a rate quantity - the rate at which an object changes its position.

### What is Electric Current? Definition, Unit & Direction of flow of Current

Mathematically, power is the work per time ratio.

Description: Alternating current Alternating current is time-varying in nature.

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Since alternating current change its direction, its polarity does not matter.
Consequently, the reference directions of currents are often assigned arbitrarily.
It has a lamp, a switch, and a cell.

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An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume .
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Electric current is defined as the rate at which charge flows through a surface (the cross section of a wire, for example). Despite referring to many different things, the word current is often used by itself instead of the longer, more formal electric current. The adjective electric is implied by the context of the situation being described.
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Electric Current Electric current is defined to be the rate at which charge flows. A large current, such as that used to start a truck engine, moves a large amount of charge in a small time, whereas a small current, such as that used to operate a hand-held calculator, moves a small amount of charge over a long period of time.
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C. interacting with an established electrical field. Although electrons in metal move in haphazard directions at many times the speed of sound, the drift speed of electrons that compose electric current is. A. a fraction of a centimeter per second. B. many centimeters per second. C. the speed of a sound wave.