An electric current in a metallic conductor such as a wire is due to the flow of electrons,
An electric current in a metallic conductor such as a wire is due to the flow of electrons, the negatively charged particles in the wire.
What is the role of the valence electrons which are the outermost electrons of an atom?
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i. The valence electrons become de-localized when a large number of atoms come together in a metal.
ii. These electrons become conduction electrons or free electrons constituting an electric current when a potential difference is applied across the conductor.
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