... Hinh 10 .5 26 Bai n PHUONG PHAP GIAI MOT SO BAI TOAN VE TOAN MACH 11 . 1 Cho maeh dien ed so dd nhu Hinh 11 . 1, dd ngudn difn cd sudt difn ddng ^ = 30 V vd difn trd r = Q, cac difn trd /?, = 12 Q, ... tich cita electron la -1, 6 .10 " C ; khd'i lugng cua electron : 9 ,1. 10"^' kg 1. 13 Mdt dien tfch didm q^ = +9 .10 "^ C ndm tai diem A chan khdng Mgt dien tfgh didm khae ^2 = -16 .10 "^ C ndm tai diem B ... dien trudng, giiia hai diem cd hieu dien the' U^^ = 10 0 V Cdng ma luc dien sinh se la : A. +1, 6 .10 ~'^J B. -1, 6 .10 "'^ J C +1, 6 .10 "''^ L D. -1, 6 .10 "^^ J 5.4 Tha mdt ion duong eho chuydn ddng khdng...