Electric Current

In this lesson.

Electric current. Electric current is electric charge in motion. It can take the form of a sudden discharge of static electricity such as a lightning bolt or a spark between your finger and a ground light switch. This is the currently selected item. Despite referring to many different things the word current is often used by itself instead of the longer more formal electric current.

Electrons are minute particles that exist within the molecular structure of a substance. Numbers in electrical engineering. Preparing to study electrical engineering on khan academy. Electric current is defined as the rate at which charge flows through a surface the cross section of a wire for example.

The adjective electric is implied by the context of the situation being described. An electric current is the rate of flow of electric charge past a point. 832 electric charge is carried by charged particles so an electric current is a flow of charged particles the moving particles are called charge carriers which may be one of several types of. Electric current in a wire where the charge carriers are electrons is a measure of the quantity of charge passing any point of the wire per unit of time.

Electric current is the rate of flow of electrons in a conductor. Water current is the rate at which water flows past a point on the water circuit. 614 an electric current is said to exist when there is a net flow of electric charge through a region. Electric current definition the time rate of flow of electric charge in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time.

Electric current is one of the most basic concepts that exists within electrical and electronic science electric current is at the core of the science of electricity. Defining the standard electrical units. Whether it is an electrical heater a large electrical grid system a mobile phone computer remote sensor node or whatever the concept of electrical current is central to its operation. The si unit of electric current is the ampere.

Sometimes these electrons are tightly held and the other times they are loosely held. Electric current any movement of electric charge carriers such as electrons protons ions or holes.