欧姆定律是一个历年中考必考的知识点,“电阻的测量”是欧姆定律在中考实验考查里的重要的承载题型,每年的考查方式不断创新.一、伏安法测电阻此法重在考查一些电学基础知识、学生对书本中“伏安法测电阻”实验的掌握情况以及在学习过程中的动手实验情况,题目具有一定的综合性. Ohm’s law is a knowledge of the test in the calendar year will be “resistance measurement ” is Ohm’s law in the senior high school entrance examination test of the important bearing problems, the annual test methods continue to innovate. Focus on examining some of the basic knowledge of electricity, students in the book “voltammetry resistance ” experiment master the situation and hands-on experiment in the learning process, the subject has a certain degree of comprehensiveness.