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 1019 m-3 and their mobility is 1.6 m2/(V.s) then the resistivity of the semiconductor contribution of holes is ignored) is close to:

Mobility of electrons in a semiconductor is defined as the ratio of th

1.	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 1019 m-3 and their mobility is 1.6 m2/(V.s) then the resistivity of the semiconductor contribution of holes is ignored) is close to:
A.	2 Ωm
B.	4 Ωm
C.	0.4 Ωm
D.	0.2 Ωm
Answer» D. 0.2 Ωm