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cse • paper_2 • solid_state_electronicscse-2003-subject-08-004

Common-emitter amplifier — UPSC CSE 2003 Physics PYQ

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Derive the various current components in a p-n-p transistor when it is actively biased. Using Ebers-Moll model, show that for the common-emitter configuration I_C = -\alpha I_E - I_{CO} \left(E^{V_C/V_T} - 1\right) where the symbols have the usual meaning.

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