【摘要】 对于均匀极化的电介质内的球型空腔问题,不少作者认为腔外仍为均匀电场E₀,腔内电场强度为E=ε_r+2/3→E₀。本文指出上述结果的错误,并分析了导致错误结果的物理模型的不足。作者通过求解满足一定边值关系的Laplace方程获得问题的正确解。更多还原

【Abstract】 As for the problem of the spherical hole inside the evenly polarized dielectric,quite a few people think that the outside of the hole still remains to be an evenly electric field E₀ and the electric field strength inside the hole is E=ε_r+2/3→E₀.This article, however, points out the error of the above 3 conclusion and at the same time, analyses the insufficiency of the physical model leading to the above wrong conclusion.The author of this article reaches the correct solution of this problem by finding the solution of the Laplace equation content with a certain boundary condition.更多还原