Wheatstone Bridge

I'mlost

1. The problem statement, all variables and given/known data
I think I got part A. I'm complete lost with b -d and help would be great

2. Relevant equations

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

2. Relevant equations

3. The attempt at a solution

Astronuc

See if this explanation helps - http://en.wikipedia.org/wiki/Wheatstone_bridge

In parts b-d, R4 = R + [itex]\Delta R[/itex], and R1 = R2 = R3.

Find an expression for V₀ in terms of R1, R2, R3 and R4, then substitute in the appropriate values.

In part d, one is looking for how much V₀ changes as [itex]\Delta R[/itex] changes.

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I'mlost	Wheatstone Bridge Tweet 1. The problem statement, all variables and given/known data I think I got part A. I'm complete lost with b -d and help would be great 2. Relevant equations 3. The attempt at a solution It think part d is ∆V = [(∆R1 - ∆R2 + ∆R3 –∆R4 ) / 4R ] * Vo But I'm not sure 2. Relevant equations 3. The attempt at a solution

Astronuc Admin	See if this explanation helps - http://en.wikipedia.org/wiki/Wheatstone_bridge In parts b-d, R4 = R + [itex]\Delta R[/itex], and R1 = R2 = R3. Find an expression for V₀ in terms of R1, R2, R3 and R4, then substitute in the appropriate values. In part d, one is looking for how much V₀ changes as [itex]\Delta R[/itex] changes.