Maxwell程组 OB E·dl= °dS at M=∠m+A OE as at Eods== 0=pdk 0 ∮EdS=01=∫J3sMaxwell方程组 山东大学物理学院 宗福建 6 0 0 l s l s s dl d S t dl I d S t Q d S Q dV d S I d S         = −      = +     = =    = =           B E E B E B J 0 0 0 s