|
|
|
搜尋
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
一個長度為L的棒子，有統一線性電荷密度"入"(爛打)，還有總電荷量Q，試計算棒子在點P的電場。(原文:A rod of length L has a uniform linear charge density 入 and a total charge Q. Calculate the electric field at a point P along the axis of the rod, a distance a from one end.)
|
|
(原作者於 2013/07/04 06:08 重新編輯過)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
主題 :
