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JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductors

  • question_answer
    Which of the energy band diagrams shown in the figure corresponds to that of a semiconductor               [Orissa JEE 2003]

    A)                                    

    B)

    C)                                  

    D)

    Correct Answer: D

    Solution :

               In semiconductors, the forbidden energy gap between the valence band and conduction band is very small, almost equal to kT. Moreover, valence band is completely filled where as conduction band is empty.   


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