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带电粒子在正交的电、磁场中的运动是力电综合问题,是高考与竞赛的热点和难点,相关的习题很多,但有些流传很广的习题或其解答却是错误的.下面与大家探讨一下带电粒子在正交的电、磁场中的运动规律.一、带电粒子在正交的电、磁场中释放后的运动题目:如图1,在第一象限有互相垂直的匀强电场和匀强磁场,电场强度为E,方向竖直向上,磁感应强度为B,方向水平.试求:位于坐标原点、质量为m、带电量+q的粒子,释放后在Y方向
The motion of charged particles in orthogonal electric and magnetic fields is a comprehensive problem of power and electricity. It is a hot and difficult point for college entrance examination and competition. There are many related exercises, but some widely-accepted exercises or their solutions are wrong. Explore the regularity of motion of charged particles in orthogonal electric and magnetic fields. First, the motion of charged particles after they are released in orthogonal electric and magnetic fields. Figure 1. In the first quadrant, there are mutually uniform homogeneous electric fields and Uniform magnetic field, electric field strength is E, direction is vertical upwards, magnetic induction intensity is B, direction is horizontal. Try: Particles at the origin of coordinates, mass m, charge quantity +q, release in Y direction