Conductors & Insulators
- Consider how charge is carried on macroscopic objects.
- We will make the simplifying assumption that there are only two kinds of objects in the world:
- Insulators.. In these materials, once they are charged, the charges ARE NOT FREE TO MOVE. Plastics, glass, and other “bad conductors of electricity” are good examples of insulators.
- Conductors.. In these materials, the charges ARE FREE TO MOVE. Metals are good examples of conductors.