A material that resists the flow of electrical current is known as an electrical insulator. These substances exhibit high electrical resistance, significantly impeding the movement of electrons. Common examples include rubber, glass, plastic, and dry wood. Their inherent properties allow them to effectively contain electrical energy within conductors, preventing leakage and ensuring safe operation of electrical systems.
The significance of electrical insulators lies in their ability to prevent short circuits, electrical shocks, and energy waste. Historically, the understanding and development of effective insulating materials were critical for the widespread adoption of electricity. From early applications using natural materials to the development of synthetic polymers, insulators have played a crucial role in protecting both equipment and individuals, enabling the reliable transmission and utilization of electrical power.
