Electricity
Conductors , Semiconductors , Insulators
Conductors
Are materials that freely allow the flow of electrons with very little resistance.
- Real world examples: Copper, aluminum, gold, and silver.
Semiconductors
Are materials that do not allow electrons to flow freely but do not directly stop them either. Semiconductors have more resistance than conductors but less resistance than insulators.
- Real world examples: germanium, selenium, and silicon
Insulators
Are materials that greatly impede or stop the flow of electrons with very high resistance.
- Real world example : glass, air, plastic, rubber, and wood.