※ 引述《howptt111 (How)》之銘言：
: https://i.imgur.com/FB5R7b2.jpg
: 求救，謝謝大家！
E - LI' - RI = 0
=> I' = -(R/L)[I - E/R]
=> ln[I - E/R] = -(R/L)t + c
=> I - E/R = Aexp(-Rt/L)
=> I = (E/R)[1 - exp(-Rt/L)]
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 117.56.175.175 (臺灣)
※ 文章網址: https://www.ptt.cc/bbs/Math/M.1613276819.A.B2B.html