[題目] Griffiths 電磁學
[領域] 電磁學 (題目相關領域)
[來源] Griffith 3rd (課本習題、考古題、參考書...)
[題目] P.124 ~ P.125 Example 3.2
[瓶頸] Image charge 的電量 (寫寫自己的想法,方便大家為你解答)
A point charge q is situated a distance a from the center of a grounded
conducting sphere of radius R. Find the potential outside the sphere.
這一題想了很久 一直想不透 為什麼想像電荷的電量是 q' = ((-R)/a)q
還有 想像電荷的位置 b = (R^2)/a <---跟幾何性質有關嗎?
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