Tell about Electric Currents ?

A battery or other power source gives the force (voltage) that makes the electrons move.

When the electrons get to a device like a light bulb,

In other materials, notably the semiconductors, the charge carriers can be positive or negative, depending on the dopant used. Positive and negative charge carriers may even be present at the same time, as happens in an electrolyte in an electrochemical cell.

your computer, or a refrigerator, they give it the power to make it work.

The direction of an electric current is by convention the direction in which a positive charge would move.

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

Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery

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

Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery

Electrons would actually move through the wires in the opposite direction.

The direction of conventional current is arbitrarily defined as the same direction as positive charges flow.

Since electrons, the charge carriers in metal wires and most other parts of electric circuits, have a negative charge, as a consequence, they flow in the opposite direction of conventional current flow in an electrical circuit.

lectrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end.

So when the battery is hooked up to something that lets the electrons flow through it,

they flow from negative to positive.

Since the current in a wire or component can flow in either direction, when a variable I is defined to represent that current, the direction representing positive current must be specified, usually by an arrow on the circuit schematic diagram.

This is called the reference direction of current I. If the current flows in the opposite direction, the variable I has a negative value.

Static electricity is caused by the build up of electrical charges on the surface of objects,

When analyzing electrical circuits, the actual direction of current through a specific circuit element is usually unknown

while current electricity is a phenomenon from the flow of electrons along a conductor.

urrent electricity is a phenomenon from the flow of electrons along a conductor. 2. When objects are rubbed, a loss and/or gain of electrons occurs, which results in the phenomenon of static electricity.

Consequently, the reference directions of currents are often assigned arbitrarily.

Current is the rate at which electric charge flows past a point in a circuit. In other words, current is the rate of flow of electric charge.

Voltage, also called electromotive force, is the potential difference in charge between two points in an electrical field.

Voltage is the cause and current is its effect.