带电粒子在电场、磁场中运动的题目例析

• 作 者: 童延宏
• 机 构: 浙江省衢州第二中学,
• 出 处: 新课程学习(中)
• 发表日期: 2013年05期

近几年高考带电粒子在匀强电场和匀强磁场中运动的题目逐渐增多,特别是在有边界的匀强磁场中的运动。题目涉及的边界的形状有长方形、正方形、三角形、圆形等多种类型,粒子进入磁场时的速度方向也比较种类繁多。题目一般多要求考生能自己分析粒子的运动径迹(或各种可能的运动径迹),对考生分析问题、解决问题的能力要求是比较高的。

In recent years, college entrance examination charged particles in uniform electric field and uniform magnetic field in the gradual increase in the number of topics, especially in the boundaries of uniform magnetic field movement. Topics covered in the shape of a rectangle, square, triangle, circular and other types of particles into the magnetic field when the speed direction is also a wide range. Questions generally require candidates to analyze their own particle trajectory (or a variety of possible motion trails), the candidates analyze the problem, the ability to solve the problem is relatively high.