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NEET AIPMT SOLVED PAPER SCREENING 2008

  • question_answer
    With which one of the following elements silicon should be doped so as to give p-type of semiconductor?

    A) Germanium     

    B)        Arsenic

    C) Selenium            

    D) Boron

    Correct Answer: D

    Solution :

    The n-type semiconductors are obtained when Si or Ge are doped with elements of group 15, eg, arsenic (As), while p-type semiconductors are obtained when Si or Ge are doped with traces of elements of group 13, ie, indium (In), boron (B). Note: The conductivity of semiconductors increases with rise in temperature.


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