Respuesta :
Air is a good insulator and doesn’t conduct heat very well. This property of air makes it effective in protecting firefighters from burns.
What are insulators?
- A substance that prevents free flow of electrical current is known as an electrical insulator.
- The electrons in the insulator's atoms are securely bonded and immobile. Electric current can flow more freely through conductors and semiconductors than other materials.
- An insulator can be identified by its resistivity, which is higher than that of semiconductors or conductors. Non-metals are the most prevalent examples.
- There is no such thing as a perfect insulator since even insulators have minute amounts of mobile charges (charge carriers) that can carry current.
- Additionally, when a sufficiently high voltage is supplied to the point where the electric field separates electrons from the atoms, all insulators turn into electrically conductive materials.
- This is referred to as an insulator's breakdown voltage. High resistivity materials like glass, paper, and PTFE are excellent electrical insulators.
To learn more about insulators with the given link
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