关于洛伦兹力演示实验的研究  

STUDY OF LORENTZ FORCE DEMONSTRATION EXPERIMENT

作　　者：王芳[1] 魏薇[1] 刘泉[1] 

机构地区：[1]华中农业大学理学院,湖北武汉430070

出　　处：《物理与工程》2015年第5期50-52,共3页Physics and Engineering

基　　金：湖北省高等学校省级教学研究项目(2014183;2013181)

摘　　要：文章分析电解质溶液中带电粒子在电磁场中的运动现象,探讨决定洛伦兹力大小的各影响因素,并对其进行详尽的理论分析.其中电解质溶液之间的关系为实验重要影响因素,理论推导得到二者间的函数关系,通过实验测得电导率和溶液浓度之间关系曲线,并将实验结果与理论分析进行了对比.研究发现洛伦兹力演示实验的关键性因素为电解质溶液的电导率和溶液浓度之间的关系,结合实验结果找到电导率最大时溶液浓度的范围.This paper analyses the moving phenomenon of charged particles in electrolyte solution covering electromagnetic field.It carries the detailed theoretical analysis to explore the influencing factors of Lorentz force.The important factor is the relationship between the conductivity of the electrolyte solution and the solution concentration.The theoretical function relationship is analyzed,and the relation curve between the electrical conductivity of electrolyte solution and the solution concentration is obtained through experiments.By comparing experimental results to theoretical analysis,we find that the decisive element of Lorentz force demonstration experiment is the relationship between electrolyte liquor specific conductivity and liquor concentration.Combining the theory with experimental results,we find the scope of the solution concentration for the largest value of the specific conductivity.

关 键 词：洛伦兹力 电导率 浓度 

分 类 号：O441[理学—电磁学]