[題目] 電偶極
[領域] 電位與電位能
[來源] 習題
[題目] Show that if two dipoles with dipole moments p1 and p2 are in line
with one another, the potential energy of one in the presence of the
other (their "interaction energy")is given by
U=-(1/2πε)(p1p2/r^3)
where r is the distance between the two dipoles. Assume that r is
much greater than the length of either dipole.
http://0rz.tw/7c2zc
[瓶頸]我知道這題好像是要求兩個電偶極在同一條直線上時的內能會符合那個式子。
可是我不知道內能怎麼算orz...之前算的電偶極題目都是一個電偶極跟一個
不在同一直線上的質點間的電位。所以，希望各位能夠點我一下告訴我怎麼下手。
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.113.187.150
※ 編輯: akw102000 來自: 140.113.187.150 (04/26 04:35)
→
04/26 06:29, , 1F
04/26 06:29, 1F
→
04/26 18:08, , 2F
04/26 18:08, 2F
→
04/28 04:42, , 3F
04/28 04:42, 3F
→
04/28 04:44, , 4F
04/28 04:44, 4F