this query was previously in electrical engg; later i found that it actually have to be solved as a solid state physics one. (as in books) In an n-p-n transistor, emitter grounded, electrons enter the emitter from ground , where 90-98% come out of collector, and rest go out of the base. In saturation, Vbe=0.7-0.8 V. where as Vce=0.2-0.25 V. now consider electrons in p material; they have two routes; one out of the base & other out of collector. why does most of electrons go out of collector(0.2 V) inspite of having a greater (0.75 V) attracting voltage at base? please answer qualitatively.