ANS:A - is an electrical insulating material.

The correct option is: Dielectric

• is an electrical insulating material.

1. Dielectric materials are used as insulators in electrical circuits to prevent the flow of electric current. They are chosen for their ability to support an electric field with minimal electric current flow.
2. Dielectric materials typically have high resistivity, meaning they do not conduct electricity well. This property is essential for their function as insulators.
3. Dielectric materials are not required to have high thermal conductivity. In fact, many dielectric materials have low thermal conductivity, which is advantageous for their use as insulators to prevent heat transfer.
4. Dielectric materials should ideally resist the corrosive action of chemicals to ensure long-term reliability in various environments. While some dielectric materials may be more resistant to corrosion than others, their primary function is electrical insulation rather than chemical resistance.