作者shining12345 (shining)
看板Physics
標題[問題] 電磁波問題
時間Wed Mar 17 11:36:54 2010
以下是我的問題
請問有神人可以幫我解答嗎?
Consider two distinct fields Ea,
Ha and Eb,Hb,which are not necessarily
related.
Suppose that the two fields are harmo
nic functions of the time with the same
frequency.
(1) Shat that
▽˙(Ea×Hb-Eb×Ha)=0
This is know as Lorentz‵s lemma.
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 120.107.174.108
1F:推 toreador529:reciprocity theorem 03/17 12:35
2F:推 nevinyrrals:用波映庭定理解 03/17 14:45