[電磁] 一題靜磁學的問題
點電荷+q與接地面的映像法中
在鏡像位置投影一個映像電荷-q
(+q)*(-q)
電荷+q受力F= ay------------
4πε(2d)^2
(-q)
系統靜電能W = (+q)---------* 1/2
4πε(2d)
想了很久.....想請教靜電能W為何要再乘上1/2,而受力F不需1/2?!
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◆ From: 115.165.205.225
※ 編輯: zxc520520 來自: 115.165.205.225 (05/05 14:22)
推
05/05 18:44, , 1F
05/05 18:44, 1F
推
05/05 22:19, , 2F
05/05 22:19, 2F
推
05/05 23:33, , 3F
05/05 23:33, 3F
推
05/07 00:30, , 4F
05/07 00:30, 4F
推
05/07 10:30, , 5F
05/07 10:30, 5F
推
05/07 10:35, , 6F
05/07 10:35, 6F
推
05/23 11:30, , 7F
05/23 11:30, 7F
→
05/23 11:31, , 8F
05/23 11:31, 8F
→
05/23 11:33, , 9F
05/23 11:33, 9F
推
09/22 12:07, , 10F
09/22 12:07, 10F