Question

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Answer 1

Answer:

In a conductor, electric current can flow freely, in an insulator it cannot. Metals such as copper typify conductors, while most non-metallic solids are said to be good insulators, having extremely high resistance to the flow of charge through them.

Answer 2

Good and bad conductors of Heat

Thermal conductivity of a substance is the ability of that substance to conduct heat.

A measure of the “goodness” or the ”badness” of a substance for the flow of heat through conduction is provided by its thermal conductivity.

Good Conductors

Materials that allow heat to pass through them easily are called good conductors of heat.

Non Conductors

Materials that do not conduct heat as easily and quickly as metals do are bad conductors.

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