-3 The P region of an abrupt junction diode has a resistivity of 0.1 ohm-cm and the N region has a resistivity of 1 ohm-cm. Assume n₁ = 2.5x10¹3 cm³, n = 3600 1700 cm²/V-s. Determine the built-in voltage Vbi- cm²/V-s and up =

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