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一、第一种实验线路1.图像法据U=ε-Ir,由于I必须是流过电池的电流,而实验本身由于伏特表的分流存在系统误差,而使安培表读数小于电池输出电流I真.所以I真:=I测十Iv,而Iv=U/Rv,u越大,Iv越大;U趋近于零时,Iv也趋近于零,它们的关系图线可用图A表示,测量图线为AB,真实图线A’B,因此,r和ε测量值都小于真实值.
First, the first experimental line 1. Image method According to U = ε-Ir, because I must be the current flowing through the battery, and the experiment itself due to the voltmeter shunt system error exists, and the ammeter reading is less than the battery output current I True, so I really: =I measures ten Iv, and Iv=U/Rv, the bigger u is, the bigger Iv is; when U approaches zero, Iv also approaches zero, and their relationship graphs can be shown in Figure A. The measurement plot is AB and the real plot A’B. Therefore, both the r and ε measurements are less than the true values.