Here's why:
* Conductors have a large number of free electrons that can move easily throughout the material. These electrons are not tightly bound to individual atoms and can easily be influenced by an electric field.
* Insulators, on the other hand, have very few free electrons. Their electrons are tightly bound to the atoms and are not easily moved.
Examples of conductors:
* Metals (copper, silver, gold)
* Graphite
* Salt water
Examples of insulators:
* Rubber
* Glass
* Plastic
Note: The term "jump" is not technically accurate. Electrons don't literally jump. Instead, they flow in a continuous current when an electric field is applied.
