# Wheatstone Bridge

## Homework Statement

I think I got part A. I'm complete lost with b -d and help would be great

## Homework Equations

https://www.physicsforums.com/attachment.php?attachmentid=10986&d=1190644998

## The Attempt at a Solution

It think part d is ∆V = [(∆R1 - ∆R2 + ∆R3 –∆R4 ) / 4R ] * Vo But I'm not sure

## The Attempt at a Solution

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In parts b-d, R4 = R + $\Delta R$, and R1 = R2 = R3.
In part d, one is looking for how much V0 changes as $\Delta R$ changes.