Neither paper nor plastic are good conductors of electricity. They are both insulators.

Here's why:

* Paper: Composed mainly of cellulose fibers, which are organic materials. Organic materials generally don't allow electrons to flow easily, making them good insulators.

* Plastic: A broad category, but most plastics are made from polymers, which are long chains of molecules. These chains are tightly packed and do not have free electrons, making them resist the flow of electricity.

Good conductors allow electricity to flow easily through them, like metals (copper, silver, gold).

Insulators resist the flow of electricity, making them suitable for things like electrical wiring insulation.