Free electrons are required for conduction of electricity. - Vidyadip

Question

Free electrons are required for conduction of electricity.

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Answer

Every atom of a metallic conductor has one or more outermost electrons which are very weakly bound to the nucleus.
These are called free electrons. These electrons can easily move from one part of a conductor to its other parts. The negative charge of the electrons also gets transferred as a result of this motion.
The free electrons in a conductor are the carriers of negative charge. Hence, free electrons are required for conduction of electricity.

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