Physics
Answer
| Conductors | Insulators |
|---|---|
| Substances which have large number of free electrons are called conductors. | Substances which have very less number of free electrons or no free electrons are called insulators. |
| They allow the electricity to flow through them. | They do not allow the electricity to flow through them. |
| They cannot be charged by rubbing. | They can be charged by rubbing. |
| Metals like silver, copper, aluminium etc. are conductors. | Substances like wood, paper, glass, rubber etc. are insulators. |
Related Questions
Give one example each of a conductor and an insulator of electricity.
A glass rod is rubbed with silk. Explain the charging of the glass rod and the silk on the basis of electron movement.
An ebonite rod is rubbed with fur. Explain the charging of the ebonite rod and the fur on the basis of electron movement.
State two ways of charging a conductor.