带电粒子在复合场中运动的问题,集中融合了力学、电磁学等知识,综合应用了力和运动观点、能量观点、图象法对问题进行分析处理等。本类题目构思新颖、综合性强,突出考查学生对物理过程和运动规律的综合分析能力、运用数学知识解决物理问题的能力及空间想象能力,是历年高考中的热点问题。其中,粒子加速器问题是本类题目中重要的题型之一, Charged particle movement in the complex field, the integration of mechanics, electromagnetism and other knowledge, the integrated application of force and movement point of view, energy point of view, the image method to analyze the problem. This topic is a novel idea, comprehensive, highlighting the students to examine the physical process and the law of the comprehensive analysis of the ability to use mathematical knowledge to solve the problem of physical ability and spatial imagination ability, is a hot issue in college entrance examination over the years. Among them, the particle accelerator problem is one of the important topics in this category,