H. Determine the resistivity of a ger at 300 K that has the simultaneous presence of (i) donor impurity of 1 in 107 and (ii) acceptor impurity of 1 in 10%. Given data: Atomic concentration in Germanium is 4.4 x 1022 atoms/cm³, n, = 2.5 x 10¹3 [5] 3 (cm³, c = 3800 cm²/Vs and ₁= 180 cm²/V s. h=

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X. Determine the resistivity of a germanium crystal at 300 K that has the simultaneous
presence of (i) donor impurity of 1 in 10' and (ii) acceptor impurity of 1 in 108. Given
data: Atomic concentration in Germanium is 4.4 × 10²2 atoms/cm³, n₁ = 2.5 × 10¹³
/cm³, He = 3800 cm² /Vs and h= 180 cm² /V s.
[5]
Transcribed Image Text:X. Determine the resistivity of a germanium crystal at 300 K that has the simultaneous presence of (i) donor impurity of 1 in 10' and (ii) acceptor impurity of 1 in 108. Given data: Atomic concentration in Germanium is 4.4 × 10²2 atoms/cm³, n₁ = 2.5 × 10¹³ /cm³, He = 3800 cm² /Vs and h= 180 cm² /V s. [5]
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