电像法是高中物理竞赛中常用到的一种方法,主要应用于讨论导体周围有一个或几个点电荷时空间的电势和场强等问题.其核心思想是在不改变原来问题的边界条件基础上,用求解区域外的假想电荷代替导体上的感应电 Electrophysics is a commonly used method in high school physics competition, which is mainly used to discuss the potential and field strength of charge space and time around one or more conductors. The core idea of ​​this method is that without changing the original boundary conditions Based on the solution, the imaginary charge outside the solution area is used to replace the induced current on the conductor