【摘要】 对使用不同型号的电压表测量干电池电压产生的误差进行了分析,在做了大量实验的基础上,提出了降低测量误差的方法。得出了一个结论：假定电池内电阻一定时,凡是电压表内电阻大的,指示值就比较接近实际值,电压表内电阻小,指示值误差就大。当电池容量大时,其内电阻小,不同类型电压表测得开路电压值的误差就小。更多还原

【Abstract】 Analysis was carried on the errors of dry battery voltage measured by using differnt models of voltmeter.On the basis after a lot of experiments,conclusion was made and the method to reduce measurement error was raised.If a battery internal resistance is constant,and in all cases the voltmeter with large internal resistance the indicated value is much better approaching actual value,the smaller the voltemter internal resistance is the larger error will be for the indicated value.When the battery capacity is large,its internal resistance is small and the error is small for the values measured by different models of voltmeter.更多还原