串联电容器的电容: 等效 A 令U=U-U ∑ U=U,+U2+U,…+U 2 U ∵C UU1+U2+…+U 1U, 作业:P94 —2+∴+ 9-5,9-10• 串联电容器的电容： =  C i Ci 1 1 等效 1 1 U q C = U U U U Ui = + + + 1 2 3 U U Ui q U q C + + + = =   1 2 C UA UB 令 U =UA −UB C1 C2 C3 Ci UA UB 2 2 U q C = i i U q C = q U q U q U C i  = + ++ 1 2 1 作业：P94 9-5, 9-10