Question

The substances having very low electrical resistance are called ___________ .

Answer 1

1. The flow of electrons in the circuit is called an electric current.
2. The SI unit of current is Ampere.
3. The materials which allow the flow of charges through them are called conductors.
4. Examples of such materials are metals like copper, iron etc.
5. Insulators do not allow the flow of charges through them.
6. Examples are wood, glass etc.
7. Conductors have very low resistance.
8. Thus, they allow the conduction of current.

Hence, the substances having very low electrical resistance are called conductors.