Electric current is a flow of electrons- minute particles far too small to see through any microscope- that are 


The blue spheres orbiting the centre are Electrons

dislodged from atoms. the greater and faster the flow of electrons, the bigger the current. But it takes a flow of billions of electrons to make even a small current.

Atoms are the tiny particles that make up all matter. The much tinier electrons orbit around the atom's nucleus in a probability function orbit path called as shells or Orbitals. Each shell may consist of a different numbers of electrons.

An atom is usually electrically neutral because the two charges between positively-charges nucleus and negatively-charged electrons are cancelled out. An atom that loses or gains electrons becomes electrically charged and is called an ion.

Electric circuit

Common drawing of an Electric Circuit

An electric current will not flow through a circuit unless there is an excess of electrons at one end and a deficiency at the other. This is known as Potential Difference.

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