12th Class Physics Semiconducting Devices

  • question_answer 13)
    In an intrinsic semiconductor the energy gap is 1.2 eV. Its hole mobility is much smaller, than electron mobility and independent of temperature. What is the  ratio between conductivity at 600 K and that at 300 K? Assume that the temperature dependence of intrinsic carrier concentration n, is given by Carrier concentration is given by  where  is a constant.  

    Answer:

                                                                       


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