What the difference between conductors and insulators?

Answer by  QASIMALI (18)

Conductors: Conductors are those materials that permit a generous flow of electrons with very little external force (Voltage) applied. Good conductors have only one electron in the Valance ring. For Example: silver(conductivity105),copper(conductivity100),gold(conductivity70.5),aluminum(conductivity61),Tungsten(conductivity31.2),Nickel(conductivity22.1), Nichrome(conductivity1.73)...etc Insulators: Insulators are those materials that have very few free electrons and require a large applied voltage to establish a measureable current level. Examples:air,diamond,glass,rubber,oil,asphal,fiberglass,porcelain,ceramic...etc

Answer by  jkc (258)

A conductor with a low Ohmic resistance value will pass electrons freely examples are Gold,Silver. An insulator with high Ohmic resistance obstructs the flow of electrons, examples Mica,PVC.