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  1. As the temperature increases the mobility of electrons __________ .

  2. A.
    decreases because the number of carries increases with increased collisions
    B.
    increases because the number of carries decreases with decreased collisions
    C.
    remains same
    D.
    none of the above

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    Answer : Option A

    Explanation :

    Mobility of electrons

    m = 2.5 for electrons and 2.7 for holes in Si.


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