Superconductors are materials that can conduct electricity at extremely high temperatures.

The right response is to provide no resistance to the passage of electricity.

Superconductors are materials that have no resistance at extremely low temperatures. As a result, electricity flows quickly through them.

eg- Mercury below 4.2 K, Lead below 7.25 K  acts like superconductors. ( K= kelvin)

Current travels in the opposite direction that free electrons from a material flow. This is referred to as current electricity.

A material may be classified into four kinds depending on its electrical conductivity, or the amount of free electrons present on its surface:

Insulators are compounds that prevent current from flowing through them.

They are devoid of free electrons.

Cotton, wood, glass, and so on.

Conductors: These are the substances that allow current to pass through them. They contain an abundance of free electrons.

Copper, silver, iron, aluminum, and so on.

Superconductors: At extremely low temperatures, this material has no resistance. As a result, electricity flows quickly through them.

eg- Mercury below 4.2 K, Lead below 7.25 K act like superconductors. (K=kelvin)

Semiconductors are substances with electrical resistivities that fall between those of conductors and insulators. silicon and germanium, for example.