推 j0958322080:寫寫自己的想法，方便大家為你解答 10/27 13:36
[領域] (題目相關領域)
電磁學
[來源] (課本習題、考古題、參考書...)
[題目]
Consider an object (not necessarily made of a conductor) that carries a
surface charge with density σ
(a) Show that the force acting on a small patch with area A on the surface is
F向量=
(Aε/2){[(Eabove)^2-(Ebelow)^2] ^n+2E平行分量(Eabove-Ebelow) ^t}
where ^n is the unit vector in the normal direction (pointing from below to
above),
while ^t a unit vector pointing along a direction tangent to the surface so
that
E平行分量 ^t=E-E垂直分量 ^n
(b) Find the electrostatic pressure acting on the surface charge.
[瓶頸] (寫寫自己的想法，方便大家為你解答)
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推 skywei:他媽的邊看邊笑 03/21 00:03
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→ killer0720: 邊他媽的看邊笑 03/21 00:14
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推 Lavchi: 邊他笑邊媽的看 03/21 00:21
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