真空中电磁学基本规律 I.E·dS= pdv,ve=p Ⅱ.E·dF= dΦ or'ds, vxE=_a aB B dt at Ⅲ.∫f B·dS=0,V.B=0 ldΦ Ⅳ.「Bd=A1+ J+ OE .dS at VXB=Ho j +Eo ot4 一、真空中电磁学基本规律 , 1 . 0 0    = = S V V q E dS  d     Ⅰ   0 1 E =  . S, t B t E r L S     d d d d    = −   = − Ⅱ   t B E    = −   .  = 0,  S B S   Ⅲ d B = 0  S t E J c t B r I S e L      d d d d            = +   = +  0 2 0  0 1 Ⅳ.                 = + t E B j c    0 0  