What is the function of an insulator?

The function of an insulator is to stop the flow of current. Insulators are materials that have high electrical resistance, which means they do not allow electric charges to move freely through them. This property is crucial in electrical applications, as insulators are used to prevent unwanted current flow that could lead to short circuits, damage to electrical devices, or electric shocks. Common insulator materials include rubber, glass, and certain plastics, all of which effectively isolate conductors from one another and from their environment, ensuring the safe operation of electrical systems.