7.12 For a p-n-p BJT with NE > NB > NC, show the dominant current components, with proper arrows, for directions in the normal active mode. If IEp = 10 mA, IEn = 100 A, ICp = 9.8 mA, and ICn = 1 A, calculate the base transport factor, emitter injection efficiency, common-base current gain, common-emitter current gain, and ICBO. If the minority stored base charge is 4.9 1011 C, calculate the base transit time and lifetime