* Rubber: Used in electrical cords, gloves, and other protective gear.

* Plastic: Commonly used in electrical housings, plugs, and switches.

* Glass: Found in light bulbs, insulators on power lines, and other applications.

* Ceramic: Used in high-voltage insulators, spark plugs, and other components.

* Wood: A natural insulator often used in construction.

* Air: Acts as an insulator under normal conditions.

* Paper: Used in capacitors and other electrical components.

* Oil: Used as a dielectric fluid in transformers and other high-voltage equipment.

* Diamond: An excellent insulator with a very high resistance to electrical current.

What makes them insulators?

Insulators have a unique atomic structure that prevents the free flow of electrons. When a voltage is applied across an insulator, the electrons are tightly bound to their atoms and cannot easily move, preventing the flow of electricity.