JEE Main 9 Jan 2019 Shift 1 Solved Paper

Section: Physics

Question : 17 of 90

Marks: +1, -0

Mobility of electrons 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 1019m–3 and their mobility is 1.6 m2 /(V.s) then the resistivity of thesemiconductor (since it is an n-type semiconductor contribution of holes is ignored) is close to:

[9-Jan-2019 Shift 1]

2 Ω m
0.4 Ω m
4 Ω m
0.2 Ω m

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