作者lplplplplplp (lp)
看板Grad-ProbAsk
标题[理工] 95 台大应力 电磁学
时间Mon Jul 13 00:42:25 2009
a shpere of radius R ,filled with a linear dielectric material with
the relative permittivity Er is placed in a otherwise uniform electic
field Eo az
(1)
求内部电场
ANS:3/Er+2 az
why?
希望有高手能替我解答~
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1F：推 SONGya168:修改格式後解锁文 07/13 01:11