Here's why:
* Copper is a good conductor of electricity. This means that electrons can move freely through its structure. Copper atoms have loosely bound outer electrons that can easily detach and flow, carrying electrical current.
* Rubber is an insulator. This means that it resists the flow of electricity. Rubber molecules have tightly bound electrons, making it very difficult for them to move and carry a current.
In summary:
* High conductivity allows materials like copper to transmit electricity easily.
* Low conductivity or insulating properties in materials like rubber prevent the flow of electricity.
