高中物理第二册(必加选)书后的学生实验八是把电流表改装成电压表。这个实验的主要步骤是测小量程电流表的内阻(电路图如图1,步骤不再赘述)。这种方法通称为“半偏法”。如果我们要测电压表的内阻,是否也能运用“半偏法”呢?分析:用“半偏法”测电流表内阻的实验 High school physics Book 2 (must be added) Post-book student experiment 8 is to convert an ammeter into a voltmeter. The main step of this experiment is to measure the internal resistance of the small-scale ammeter (the circuit diagram is shown in Figure 1, and the steps are not repeated here). This method is commonly known as “half partial”. If we want to measure the internal resistance of the voltmeter, can we also use the “half partial method”? Analysis: Use “half partial method” to test the internal resistance of the ammeter