Conductors and Insulators

We must have seen electric wires

It has copper wire on the inside and plastic insulation on the outside.

This is because copper is a conductor while plastic is an insulator.

So those which conduct electricity are the conductors whereas rest are insulators.

Let's understand about conductors first

Conductors are the materials or substances which allow electricity to flow through them.

They are able to conduct electricity because they allow electrons to flow inside them very easily.

They have free electrons on its surface which allows current to pass through it.

Conductors have this property of allowing the transition of heat or light from one source to another.

Metals, Humans, Earth and Animal bodies are all conductors.

This is the reason we get Electric Shock!

The main reason is that being a good conductor, our human body allows a resistance free path for the current to flow from wire to our body.

Now let us know about the Insulators

Insulators are the material or substance which resist or do not allow the current to flow through them.

They are mostly solid in nature and are finding use in a variety of systems.

They do not allow the flow of heat as well.

Wood, cloth, glass, mica and quartz are some good examples of insulators.

Insulators are also protectors as they give protection against heat, sound and of course passage of electricity.

Insulators do not have any free electrons and it is the main reason why they do not conduct electricity.

The property which makes insulator different from conductors is its resistivity.

Revision

Conductors are the materials or substances which allow electricity to flow through them.

Insulators are the material or substances which resist or do not allow the current to flow through them.

The End