电磁场知识一直是高考物理考查的重点内客,带电粒子在电磁场中的运动更是考查的重中之重.本文就解有关带电粒子在电磁场中的运动的习题时如何利用好初始条件、边界条件、隐含条件、几何条件、临界条件等谈一点体会. The knowledge of electromagnetic field has always been the focus of physical examination of the college entrance examination, the movement of charged particles in the electromagnetic field is the most important test.This paper solves the problem about the movement of charged particles in the electromagnetic field how to use the initial conditions, the boundary conditions Implicit conditions, geometric conditions, critical conditions, such as a little experience.