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带电粒子(不计重力)以一定的初速度,垂直射入圆形匀强磁场后所做的运动.可称为“圆中圆”运动.解决这类问题的关键是分析粒子入场点和出场点情景,正确建立磁场圆和轨道圆的关系.
The motion of a charged particle (not counting gravity) at a certain initial velocity and perpendicular to a circular uniform magnetic field. It can be called a “circle circle” movement. The key to solving this type of problem is to analyze particle entry points and appearances. Point the scene, correctly establish the relationship between the magnetic field circle and the orbital circle.