What is a good insulator?

Answer 1

Insulator is a material that resists the flow of electric current. materials such as glass, paper or Teflon are very good electrical insulators. These materials are used to support or separate electrical conductors without passing current through themselves.

Answer 2

One good insulator is fiberglass, which is commonly used in buildings to prevent heat loss. Another good insulator is foam, which can be found in insulating materials for pipes and walls. Air is also a good insulator and is often used in double-pane windows to reduce heat transfer.