Question

The electron and hole currents inside a pnp BJT biased in the active mode are plotted below. All the currents are referenced to Ii, the hole current inj c cted Determine: (a) The emitter efficiency (); (b) The base transport factor (a) (c) The common emitter d.c. current gain (Bac); (d) The base current (IB). (e) For the given transistor, is the recombination-generation current arising from the depletion regions negligible as assumed in the ideal transistor analysis? Explain. Hole current density 0.999/ 0.999/ 0.001/ 0.0011

Answer 1

0 o) Emithr efFicienty to ta emiter curt

(fa) Pdc auin 2 s Co 999) dc - 0 998o) 0.998o) 0.00 199

cwnert 巳 e) Ascue on fre the orcombi_.thi- (1'-‘.992 T,) = 0.0011|