Chapter 20 Gauss s law 第八章静电场 =∮Ed5=∑ Discussion I)The relation of the source of electric filed and the field(反映场和源的关系) 2)Where 2a, is the algebraic sum of all interior charges enclosed in the gaussian surface. g is not related to the way of distribution and outside charges 电通量只与面内电荷有关,与面外电荷无关Chapter 20 Gauss’s Law 第八章静电场 1) The relation of the source of electric filed and the field (反映场和源 的关系).       n i i S Φ E S q 0 1 e 1 d    Discussion 2) Where is the algebraic sum of all interior charges enclosed in the Gaussian surface.  is not related to the way of distribution and outside charges. qi 电通量只与面内电荷有关，与面外电荷无关