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    1. Hall coefficient RH is directly proportional to the charge density
    2. RH depends upon type of the semiconductor material (n - type or p - type)
    3. Hall co-efficient RH is directly proportional to hall voltage VH
    From the above statements which are the false statements?

    2. A.
    I only
    B.
    II only
    C.
    III only
    D.
    all of the above

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    Answer : Option A

    Explanation :

    where r is charge density

    and RH = + ve, then the material is p - type

    = - ve, then the material is n - type

    RH ∝ VH where VH is Hall voltage.

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