- #1

- 58

- 1

## Homework Statement

to prove v

_{o}=(2R

_{2}/R

_{1)}[1+R

_{2}/R

_{v]}[v

_{I2}-v

_{I1}] and R

_{v}is variable resistor

## Homework Equations

## The Attempt at a Solution

upper: 2 is 0V? and then Rv,2R2 form a t-network?

bottom:3 is 0V? if not how can i calculate?[/B]