Question

define conductor and insulator

Answer 1

those substances through which electricity can flow is called conductor for Eg. aluminum,copper
those substances through which electricity can't flow is called in insulator Eg . mica ,paper

Answer 2

Answer:

Conductors are those through which electric charge can flow easily. For example metal and the human body. In metals, only the negative charge is free to move. Positive charge is immobile.

Insulators are those substances in which electric charge cannot flow. For example plastics and dry wood. Insulators have practically no free electrons. If some charge is given to an insulator it says at the place where it is put on.