电阻测量的方法设计与实验探究

Experimental Exploration and Method Design of the Resistance Measurement

电阻是电子线路中的重要元件之一,精确地测定出其阻值对指导电路设计和实验探究具有重要意义。探讨了测量电阻值的方法,如伏安法、电压表法、电流表法、滑动变阻器法和万用表法,设计了相应实验电路图。这些方法可根据已有器材和实验条件来指导实验设计与探究,为学生创新性电路设计与实验探究提供帮助。最后分析了相关实例,旨在开发学生的创造性思维。

Resistance is one of important elements in electronic circuit. It is significantly meaningful to measure its resistance value precisely to guide in circuit design and experimental investigation. The methods for measuring resistance value are discussed in this paper, including voltammetry, voltmeter method, ampere meter method, slide rheostat method and multimeter method. Besides, the corresponding experimental circuit diagrams are also designed. These methods can be adopted to guide experimental design and investigation according to the owned apparatuses and experimental conditions to provide help for students to make innovations in circuit design and experimental investigation. Lastly, related examples are analyzed designated to develop students＇ creative thinking.