What is an Insulator?

In Physics, you might have heard about an ”insulator” but you might have frequently asked yourself, what is an insulator?

An insulator is basically a material or substance that resists or does not allow current to pass through it.

They are generally solid in nature.

In addition, insulators are used in various systems. Because they do not let heat flow through.

Examples and Uses Of Insulators

Examples are;

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

Glass is the best insulator because it has the highest resistance.

Plastic is a good insulator and finds application in the manufacture of many things.

Rubber is a common material used in the manufacture of tires, fireproof clothing and slippers. This is due to the fact that it is a very good insulator.

Insulators can be used as;

Insulators work as protectors.

They can protect heat, sound and the passage of electricity.

Thermal insulators, sound insulators and electrical insulators are used for various reasons, from keeping heat in houses to protecting electrical wires and soundproofing rooms.

Depending on what you plan to use an insulator for, it will depend on what type of insulator to use.

Thermal insulators, disallow heat to move from one place to another. Hence, we use them in making thermoplastic bottles. They are also used in fireproofing ceilings and walls.

Sound insulators help in controlling noise level, as they are good in absorbance of sound. Thus, we use them in buildings and conference halls to make them noise-free.

Electrical insulators hinder the flow of electron or passage of current through them. So, we use them extensively in circuit boards and high-voltage systems. They are also used in coating electric wire and cables.

Credit:

https://www.toppr.com/guides/physics/electric-charges-and-fields/conductors-and-insulators/

Image Credit

AB Electrical & Communications Ltd