(a) The applied electric field in p-type silicon is E = 10 V/cm. The semiconductor conductivity is σ = 1.5 (Ω−cm)−1 and the cross-sectional area is A = 10−5 cm2. Determine the drift current, (b) The cross-sectional area of a semiconductor is A = 2 × 10−4 cm2 and the resistivity is ρ = 0.4 (Ω-cm). If the drift current is I = 1.2 mA, what applied electric field must be applied?
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