KIEM TRA 45BAI I HK II I : B{n chdi d0ng dien rrong qh {t bdn d6n li ,{)t0ng chuydn ddi cd hddng ctia cdcdlecrron vi ,>Beddng chuydn ddi c6 h ddng cfia cdcdlecr ronvi 16 trdng ,gg.gc chi6u dien rrtrtngr 16 trdng cDn g chidu di€n rrurirng. theo chidu cliQn trtrilng vi 16 trdng trdng theo chidu diQn tnttng vi Olectron ngdqrc chi6u cliQn trufdng. plodng chuydn ddi c6 hudng ctia c6c 16 nguQc chidu diQn trdr)ng. Ce u 2: Chon c6u trrt lt)i dfing ,,u WElecuon rd do vd 16 trdng ddu chuydn ctQng ngugc chi6u diQn tnrdng. . EEl.tr,rn rr do vi 16 trdng ddu mang diQn tich 6m. ,a, cIQ cdc h4t tii diQn phg thu6c rat nhi6u vio cdc y€u td b6n ngodi nhu nhier dO, t1p dtdt, mrfc cI6 chidu siing. OoO linh tlng cria cdc hqt tii cli€n hdu nhrr kh6ng thay ddi khi nhiQt dQ tlng CAu 3: Ch