* Conductors: Metals have free electrons that can easily move throughout their structure. This allows electricity to flow freely through them, making them ideal for carrying electrical currents.
* Insulators: Rubber, on the other hand, has tightly bound electrons that don't move easily. This prevents electricity from flowing through it, making it an insulator.
Why use rubber then?
While metal conducts electricity, it can also be dangerous. If the wire is exposed, it can cause electric shocks. Rubber is used as insulation around the metal wire to prevent this. The rubber layer acts as a barrier, keeping the electricity within the metal core and preventing accidental contact with humans or other objects.
In summary:
* Metals are good conductors of electricity.
* Rubber is a good insulator.
* We use metal for the core of wires to carry electricity and rubber as insulation to protect us from electrical shock.
