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带电粒子在匀强磁场中的圆运动是高中物理中的一个重点 ,也是高考中的热点 .而带电粒子在有界匀强磁场中不完整的圆运动 ,则是中学物理中的一个难点 .本文将针对这一难点进行较为详尽的分析 ,希望会对师生的教与学有所帮助 .1 带电粒子在有界匀强磁场中的运动时间(1 )通过确定
The circular movement of charged particles in a uniform magnetic field is a key point in high school physics and a hot spot in college entrance examination. However, the incomplete circular motion of charged particles in a bounded uniform magnetic field is a difficult point in the middle school physics. A more detailed analysis of this difficulty will be carried out in the hope that it will help teachers and students in their teaching and learning.1 The time of movement of charged particles in a bounded homogeneous magnetic field (1) is determined by