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Diodes and Applications

Q1: Electrons in the outermost orbit or shell of an atom are called

A free electrons

B negative ions

C valence electrons

D conduction band electrons

ANS:C - valence electrons

You are right that electrons in conduction band are called free electrons, but electrons in outermost orbits are valence electrons which are not free electrons until they got energy equal to their Bandgap energy.



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