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Question

Draw separate energy band diagrams for conductors, semi-conductors and insulators and label each of them.

Solution
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Energy band diagrams for conductor, semiconductor and insulator are shown above.
In conductors, both the valance band and conduction band overlap each other. So there is zero band gap in a conductor.
In semiconductor, there is a small band gap approximately of 1 eV.
In an insulator, there is a large band gap of nearly 5 eV.
783540_788705_ans_59e1622cb0b540cab0b657fccca9c48d.png

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