In a semiconductor, mobility of electron, i.e., drift velocity per unit applied electric field is $ 1.6 $ (S.I. unit). The density of electron is $ 10^{19} \mathrm{~m}^{-3} $ (Neglect holes concentration). The resistivity of semiconductor is $ n \Omega \mathrm{m} $.

Question

In a semiconductor, mobility of electron, i.e., drift velocity per unit applied electric field is $ 1.6 $ (S.I. unit). The density of electron is $ 10^{19} \mathrm{~m}^{-3} $ (Neglect holes concentration). The resistivity of semiconductor is $ n \Omega \mathrm{m} $.,

MARKS App · Accepted Answer

ρ = E J = E n e υ d = 1 n e μ μ = mobility ρ = 1 10 19 × 1.6 × 10 - 19 × 1.6 = 1 2.56 Ω - m = 0.4 Ω - m .

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