Electric Current

Simply Electric Current is nothing but the flow of electrons or flow of charges. It is also defined as the rate at which charge flows past a point on a circuit. Electric Current is measured in Coulombs/second which is named Amperes. Electric current is electric charge in motion.

Current in series circuits =

Current that flows through resistors in series is equal in all resistors which is given as

[ I_Total = I₁= I₂= I₃=...]

Current in parallel circuits =

Current that flows through resistors in parallel is equal to the sum of the parallel currents of each resistors

[ I_Total = I₁+ I₂+ I₃+...]

There are two types of curents

1) Direct Current =

The other way to create a charge imbalance was the electro-chemical battery which is invented in 1800 by Italian physicist Alessandro Volta for whom the unit for electromotive force, the volt is named. His "voltaic pile" consisted of a stack of alternating zinc and copper plates separated by layers of cloth soaked in salt water and produced a steady source of direct current.

2) Alternating current =

Most of the electricity that we use comes in the form of alternating current (AC) from the electric power grid. Alternating current is produced by electric generators that operate on Faraday’s Law of Induction, by which a changing magnetic field can induce an electric current in a conductor.