For a p-n-p BJT with NE > NB > NC, draw a picture that shows the dominant current components with proper arrows, for directions in the normal active mode. Note the size of the arrows should qualitatively represent the magnitude of the currents. If IEp = 12 mA, IEn = 40 µA, ICp = 9.5 mA, and ICn = 1.5 µA, calculate the base transport factor B, current transfer ratio ????α, emitter injection efficiency ????γ , and current gain ????β. If the minority stored base charge QN = 5.9 x 10-11 C, calculate the base transit time ????τtN and lifetime ????τpN.