定量探究平行板电容器的电容  

Qualitative investigation of the capacitance of the parallel plate capacitor

作　　者：石晓兰 王树超[1] SHI Xiao-lan;WANG Shu-chao(Beijing National Day School,Beijing 100039,China)

机构地区：[1]北京市十一学校,北京100039

出　　处：《物理实验》2022年第1期57-59,63,共4页Physics Experimentation

基　　金：海淀区教育科学“十四五”规划2021年度重点课题(No.HDGH20210150)

摘　　要：平行板电容器的电容是高中物理电学部分的重要演示实验.教材中的探究方案只能定性研究,且理解难度大,实验效果不明显.为解决以上问题设计了简单稳定且能定量探究平行板电容器电容决定因素的实验装置.实验装置采用单面覆铜板作为电容器极板,利用A4纸或塑料文件夹做电介质,通过实验探究得出平行板电容器电容与极板正对面积成正比,与极板间距成反比.The capacitance of parallel plate capacitors is an important demonstration experiment in the high school.The exploration scheme in the textbook is studied qualitatively and difficult to understand,and the experimental phenomenon is not obvious.In order to solve the above problems,a simple and stable experimental device that could quantitatively explore the determinants of parallel plate capacitors was designed.The single-sided copper laminates were used as the capacitor plates,and A4 paper or plastic folders as the dielectric.Experimental investigations showed that the capacitance of a parallel plate capacitor was directly proportional to the area of the plates,and inversely proportional to the distance between the plates.

关 键 词：平行板电容器 电容 定量探究 

分 类 号：G633.2[文化科学—教育学]