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[領域]電磁學 (題目相關領域) [來源] Harris Benson (課本習題、考古題、參考書...) [題目]consider a model of the hydrogen atom in which a point charge is surroundied by a charge that is uniformly distributed throughout a sphere of radius R, show that the electric field for r<R is given by E(r)=ke(1/r^2 - r/R^3) [瓶頸]我在猜是不是要用到期望值(?), 因為電子是隨機分布的吧?但是我不知道 要如何取範圍..., 還是我方向錯誤了? 感謝賜教 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.198.167.12