Created by Daniel
Is an object or type of material that allows the flow of electrical current in one or more directions. I use water which is conductor daily. Other conductors are different metals.
Is a material whose internal electric charges do not flow freely. I encounter wood daily. Other insulators are Styrofoam, paper, rubber, glass and dry air.
A solid substance that has a conductivity between that of an insulator and that of most metals. I don't think I encounter this much but I probably do. Germanium, selenium, and silicon.