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带电粒子在复合场中的运动问题的分析方法和力学问题的分析方法基本相同,不同之处是多了电场力和洛仑兹力,因此,带电粒子在复合场中的运动问题除了利用力学三大观点(即动力学观点、能量观点、动量观点)来分析外,还要注意电场力和洛仑兹力的特性。下面结合高考题实例来谈谈这类问题的解法。
The analysis method of the motion problem of charged particles in the composite field is basically the same as that of the mechanical problem. The difference is that there are more electric field forces and Lorentz forces. Therefore, the motion problem of charged particles in the composite field is in addition to the use of mechanics III. In addition to analyzing large perspectives (ie, dynamic viewpoints, energy perspectives, and momentum viewpoints), we must also pay attention to the characteristics of electric force and Lorentz force. The following is a combination of college entrance exam questions to discuss the solution to this type of problem.