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带电粒子在有界匀强磁场中的运动是高中物理的重点内容,对学生的空间想象能力、画图能力、知识的综合运用能力要求都比较高,在高考中为Ⅱ级要求,因此经常作为高考压轴题.大多数学生对这类问题的理解不是非常准确,考试中失分严重,究其原因,是因为学生对这类运动问题缺少总结归纳,在考场上时间紧、头绪乱.下面就此类问题进行分析.一、解题依据带电粒子在有界匀强磁场中的运动,不论磁场是什么形状、什么边界,其运动规律都是匀
The movement of charged particles in the bounded uniform magnetic field is the key content of high school physics. The ability of students’ ability of space imagination, drawing ability and knowledge comprehensive utilization is relatively high, which is the requirement of level Ⅱ in college entrance examination. Therefore, it is often used as college entrance examination Finale problem.Most students are not very accurate understanding of such issues, the test score serious, the reason is because students lack of summary summary of these sports issues, the time in the examination room tight, clues. Problem analysis.A solution to the problem based on the charged particles in a uniform magnetic field in uniform motion, regardless of what the shape of the magnetic field, what the boundary, the law of motion are uniform