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For an n-type doping in a pure semicondu...

For an n-type doping in a pure semiconductor the concentration of charge carrier electrons increases 5 times. Find hole concentration as percentage of the electron concentration.

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Knowledge Check

  • Statement I: In spite of increasing in doping level the conductivity of the semiconductor does not change. Statement II : By increasing in doping level the conductivity the concentration of one type of charge carriers (electrons or holes ) is increased and at the same time concentration of other charge carrier decreases.

    A
    Statement I is true statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true statement II is false.
    D
    Statement I is false statement II is true.

  • In an n-type semiconductor if n and p are the concentration of electrons and holes respectively and n_(i) is the concentration of electron-hole pairs in a pure semiconductor then

    A
    n=p
    B
    n`gt`p
    C
    n`lt`p
    D
    np=`n_(i)^(2)`

  • For the reaction A + 2B to C , the reaction rate is doubled if the concentration of A is doubled The rate is increased by four times when concentrations of bothA and B are increased by four times. The order of the reactions is

    A
    3
    B
    0
    C
    1
    D
    2

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