... cu B v C chm vo in tớch trờn mi qu cu l A qA = 6àC,qB = qC = 12 C B qA = 12 C,qB = qC = 6àC C qA = qB = 6àC, qC = 12 C D qA = qB = 12 C ,qC = 6àC Cõu 506 Hai in tớch dng q1= q2 = 49àC t cỏch mt ... 350V D 400V Cõu 126 Cú t C1 = 3àF, C2 = 6àF, C3 = C4 = 2àF c mc A M B nh hỡnh v Hiu in th gia hai im A v B l U AB = 12V Hiu in th UAM gia hai im A v M l A 8V B 6V C 4V D 1,2V Cõu 127 Mt t in cú ... tớch A + 1,6.10-19 C B 1,6.10-19 C C + 12, 8.10-19 C D - 12, 8.10-19 C Cõu 161 iu kin vt dn in l A vt phi nhit phũng B cú cha cỏc in tớch t C vt nht thit phi lm bng kim loi D vt phi mang in...