Mobility of electron in a semiconductor is defined as the ratio of their drift velocity to the

Q 22. Mobility of electron in a semiconductor is defined as the ratio of their drift velocity to the applied electric field. If, for an n-type semiconductor, the density of electrons is 1019 m–3 and their mobility is 1.6 m2/(V.s) then the resistivity of the semiconductor(since it is an n type semiconductor contribution of holes is ignored) is close to:

a. 2Ωm b. 4Ωm c. 0.4Ωm d. 0.2Ωm
JEE Main 09 Jan 19 morning

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