电路如下图所示，求出输入电压和输出电压关系式

Question

如题所述

Answer 1

Ui/R1=(U0-Ui)R2
U0=(R1+R2)/R2*Ui

Answer 2

ui/R1=(uo-ui)/R2
R2ui=R1uo-R1ui
(R2+R1)ui=R1uo
uo/ui=(R2+R1)/R1本回答被网友采纳