浅谈电源电动势和内阻的测量方法

On the ways of measuring electrodynamic force and internal resistance of pouersource

用伏安法测电源电动势和内阻是一种常用方法,由于表内阻的影响,实验的系统误差较大。本文根据电势差计原理,用补偿法测电源电动势和内阻,就能比较准确地进行测量,消除了表内阻影响带来的系统误差。

Measuring electrodynamic force and internal resistance of pouer source by the way of VA(volt-ampere) is often used.But the system error of the experiment are usually large by this way.The experimental result would be more exact if we we use 'compensating meathod 'on PD(potential difference) principle.