滑动变阻器的限流式和分压式接法是高中物理电学实验常用的两种连接方法。对两种电路特点分别进行探究,并从实用性方面对两种电路进行比较,可以帮助学生在实验设计和选择时能够快速准确地选择电路。 Slide rheostat current-limiting and voltage-divider connection is commonly used in high school physics experiment two connection methods. The two circuit characteristics of the two were explored, and from the practical aspects of the two circuits are compared to help students in the experimental design and selection can quickly and accurately select the circuit.