Electric Current Flow In A Circuit

One is the theory of conventional current and the other is the theory of actual current flow.

Electric current flow in a circuit. The amount of charge passing a point in the circuit can be calculated using the equation. Electrical current is a flow of electrons. Since current can be the flow of either positive or negative charges or both a convention is needed for the direction of current that is independent of the type of charge carriers. Conventional current assumes that current flows out of the positive terminal through the circuit and into the negative terminal of the source.

Using the word current in this context is to simply use it to say that something is happening in the wires charge is moving. You can also liken electrical current to the quantity or volume of water flowing through a water pipe. A flow of positive charges gives the same electric current and has the same effect in a circuit as an equal flow of negative charges in the opposite direction. There are two theories behind this phenomenon.

When current flows electrical work is done and energy transferred. Yet current is a physical quantity that can be measured and expressed numerically. The direction of electric current flow is a little difficult to understand to those who have been taught that current flows from positive to negative. If the two requirements of an electric circuit are met then charge will flow through the external circuit.

An electric current is a flow of particles electrons flowing through wires and components. Electric current is defined as the rate of flow of negative charges of the conductor in other words the continuous flow of electrons in an electric circuit is called an electric current the conducting material consists a large number of free electrons which move from one atom to the other at random. The term current refers to the simple flow of electrons in a circuit or electrical system. Electrical current exists in two types.

Electron flow is what actually happens and electrons flow out of the negative terminal through the circuit and into the positive terminal of the source. It is the rate of flow of charge if the electric charge flows through a conductor we say that there is an electric current in the conductor in the circuits using metallic wires electrons constitute a flow of charges. This was the convention chosen during the discovery of electricity.