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VMMC VMMC Medical Solved Paper-2004

  • question_answer
    The major carriers of current in a p-type semi-conductor will be

    A) neutrons                            

    B) protons               

    C)        electrons            

    D)        holes

    Correct Answer: D

    Solution :

    It is known that in a p-type semi-conductor trivalent impurity (having 3 valence electrons) is added. These impurities provide holes to create positive charge carriers. Hence, current carriers in p-type semi-conductor are holes.


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