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测量电阻的方法有多种,如伏安法、比较法、替代法、半偏法、欧姆表法等,除欧姆表法外,其他的方法测电阻都可以归结为伏安法.而伏安法测电阻对器材的选择、滑动变阻器的用法、电路的连接等都有一定的要求,本文就从这几个方面进行探究.一、选择器材的基本原则1.科学性科学的设计方案应有科学的依据及正确的方式.2.安全性
There are many ways to measure the resistance, such as voltammetry, comparison, alternative method, half-partial law, ohmmeter law, in addition to the ohmmeter method, other methods can be attributed to resistance measurement voltammetry. Method of measuring the resistance of the choice of equipment, the use of sliding rheostat, the circuit connection, and so have some requirements, this article from these aspects to explore. First, the basic principles of selection of equipment 1 scientific and scientific design should have Scientific basis and the right way .2. Security