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What is the range of energy gap ( Eg ) i...

What is the range of energy gap `( E_g )` in insulators , semiconductors and conductors ?

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The correct Answer is:
A
For insulators ` E_g gt 3 eV ` , for semiconductors, ` E_g = 0.2 eV ` to 3 eV while for conductors
(or metal ) ` E_g = 0`.
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