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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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