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Electronic Devices question

2019 · 9 Jan · Shift 1 · Q45
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Electronic Devices question

2019 · 9 Jan · Shift 1 · Q45

JEE MainPhysicsElectronic DevicesMCQ+4 / −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 (since it is an n-type semiconductor contribution of holes is ignored) is close to :
  1. A
    2 Ω2\,\Omega2Ω m
  2. B
    4  Ω\,\OmegaΩ m
  3. C
    0.4  Ω\,\OmegaΩ m
  4. D
    0.2  Ω\,\OmegaΩ m
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