Electric conductors are materials that will allow easy movement of electrons through them. While insulators are materials which do not allow easy movement of electrons through them. A good conductor of electricity is a good conductor of heat.
Examples of conductors are metal, damp air, salt solution, graphite, carbon black, the Earth and the human body. (Any 4 examples)
Examples of insulator: polythene, bakelite ebonite, dry paper, dry hair, silk, oil, glass, wood and surphur (Any 4 examples)
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