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    NEET Physics Mock Test 2026: Download PDF Physic Practice Test

    Mobility Of Electron MCQ - Practice Questions with Answers

    Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

    Quick Facts

    • 3 Questions around this concept.

    Concepts Covered - 1

    Mobility
    1. Mobility-

    Drift velocity per unit Electric field is called mobility of electrons.

    $
    \mu=\frac{v_d}{E}
    $

    $\mu-$ Mobility

    $
    v_d-\text { Drift velocity }
    $


    Relation between conductivity and Mobility:

    $
    \sigma=\mu n e
    $


    Where n is the number of electrons per unit volume, e is the charge of the electron and $\sigma$ is the conductivity.

    In case of a conductor conductivity decrease with the increase of temperature and in the case of semiconductor conductivity increase with increase in temperature.

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