【摘要】 在电磁学教学中经常被问到“电位移矢量D是否与极化电荷有关的问题”.本文基于以往文献的观点和论据，对电位移矢量D与极化电荷的关系进行了进一步的讨论.结果表明由于自由电荷和极化电荷的分布之间存在制约关系，笼统的说电位移矢量D和极化电荷有关和无关都是不确切的；以往文献中给出的“D与极化电荷无关的条件”,改称为“极化电荷的分布不影响原来自由电荷分布的条件”会更确切些.更多还原

【Abstract】 In the teaching of electromagnetism, it is often asked whether the electric displacement vector D is related to the polarization charge. In this paper, the relation between the electric displacement vector D and the polarization charge is further discussed based on the viewpoints and arguments presented in previous literatures. The results demonstrate that due to the constraint relationship between free charges and polarization charges, it is inaccurate to simplistically state that the electric displacement vector D is either related or unrelated to polarizationcharges. The “conditions under which D is independent of polarization charges” proposed in previous literature should be more appropriately termed as “conditions under which the distribution of polarization charges does not affect the original distribution of free charges”.更多还原