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What is Electric Current and Unit of Electric Current

What is electric current?

Electric current is a flow of electric charge. It is measured in amperes. Current is caused by the flow of electrons in a conductor. The moving electrons create a force that pushes against the electric field. This push is what we call an electric current.

Electric current definitions

·        The electric current is said to be the rate of flow of charges.

·        The rate of flow of electrons in an electric circuit is called electric current or the flow of charges per second time is called current.

In general, electric current is the flow of electric charge. This charge is often carried by electrons in a metal conductor such as a wire. The charge can also be carried by ions in an electrolyte, or by both electrons and ions in a plasma.

In fact, anything that can flow can carry electric current. For example, water current is the flow of water molecules through a pipe, and blood current is the flow of blood cells through a vessel. By analogy, we often speak of an "electric current" flowing through a circuit.

Electric Current Formula

Mathematically,

1.      I = V / R

Where I is the current flowing through any circuit as a result of the voltage applied V, and R is the resistance of the same circuit. So,

Current = Voltage / Resistance

2.      I = Q / T

Where Q is the charge in coulombs, which is the unit of charge and T is the time in seconds.

How is electric current measured?

Electrical current is measured in amperes and can be found by measuring the voltage drop across a resistor using an ammeter.

The Ampere

The unit of the current in the System International (SI) is Ampere. One ampere is equal to one coulomb per second, which is the rate of flow of electric charge. This means that an ampere can be thought of as a measure of the number of electrons flowing through a conductor in a given period of time.

The current is said to be 1 ampere when the 1-coulomb charge is passing through a circuit for 1 second.

 SEE MORE What is Direct Current or DC

What is an Alternating Current or AC