基础实验试题B:直流电路的研究  

Fundamental test B:Research on DC circuit

作　　者：钱钧[1,2] 惠王伟[1,2] 牛紫平 孙海英[1,2] 于健[1,2] 王槿[1,2] 姚江宏[1,2] 孔勇发[1,2] QIAN Jun;HUI Wang-wei;NIU Zi-ping;SUN Hai-ying;YU Jian;WANG Jin;YAOJiang-hong;KONG Yong-fa(School of Physics,Nankai University,Tianjin 300071,China;National Demonstration Center for Experimental Physics Education,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学物理科学学院,天津300071 [2]南开大学基础物理国家级实验教学示范中心,天津300071

出　　处：《物理实验》2022年第2期41-47,共7页Physics Experimentation

基　　金：国家基础科学人才培养基金项目(No.J1210027);2020高等学校教学研究项目(No.DJZW202010hb);教育部产学合作协同育人项目(No.202101076008);南开大学物理基地能力提高项目(No.J1103208)。

摘　　要：介绍了第7届全国大学生物理实验竞赛基础实验试题B的实验内容,给出了参考解答,并分析了竞赛结果.基础实验试题B为直流电路的研究,试题包含电阻的测量、二极管的伏安特性曲线、直流单臂电桥、直流电源的输出特性和电学黑盒子等实验内容.试题在常规实验的基础上,进行了综合、扩展以及提升,比较全面地考查了考生的电学基础知识、实验操作水平和利用所掌握的知识综合解决实际问题的能力.The test questions»solutions and result analysis of the fundamental test B of the 7th Chinese Undergraduate Physics Experiment Competition,the research of DC circuit were introduced.This part included the resistance measurement,volt-ampere characteristic curve of diode>Wheatstone bridge,output characteristics of DC power supply and electrical black box.The test was integrated,expanded and improved on the basis of conventional experiments.Besides,the students?basic electrical knowledge,experimental operation level and the ability of comprehensive solving practical problems were inspected.

关 键 词：直流电路 电桥 电学黑盒子 

分 类 号：TM131.3[电气工程—电工理论与新技术]