Question

what is a good conductor​

Answer 1

Copper is considered to be a conductor because it “conducts” the electron current or flow of electrons fairly easily. Most metals are considered to be good conductors of electrical current. Copper is just one of the more popular materials that is used for conductors.

Answer 2

good conductors are any substance which conduct anything ( e.g.heat, electricity...etc.) very fairly as well as smoothly or totally.