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