Solve Wheatstone Bridge: Homework Statement & Equations

Click For Summary
SUMMARY

The discussion focuses on solving the Wheatstone Bridge problem, specifically parts b through d of the homework assignment. The key equation for part d is identified as ∆V = [(∆R1 - ∆R2 + ∆R3 – ∆R4) / 4R] * Vo, which relates the change in voltage to the changes in resistance. Participants emphasize that R4 is defined as R + ∆R, while R1, R2, and R3 are equal. The goal is to derive an expression for V0 based on these resistances and analyze how V0 varies with changes in ∆R.

PREREQUISITES
  • Understanding of Wheatstone Bridge circuit principles
  • Familiarity with voltage and resistance relationships
  • Basic knowledge of differential calculus for analyzing changes
  • Ability to manipulate algebraic equations
NEXT STEPS
  • Study the derivation of voltage equations in Wheatstone Bridges
  • Learn about the impact of resistance changes on circuit behavior
  • Explore differential calculus applications in electrical engineering
  • Review practical applications of Wheatstone Bridges in measurement
USEFUL FOR

Students studying electrical engineering, physics students tackling circuit analysis, and educators looking for teaching resources on Wheatstone Bridges.

I'mlost
Messages
1
Reaction score
0

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

Homework Equations


The Attempt at a Solution

 
Last edited:
Physics news on Phys.org
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.
 

Similar threads

  • · Replies 9 ·
Replies
9
Views
3K
Replies
1
Views
8K
Replies
2
Views
2K
  • · Replies 14 ·
Replies
14
Views
24K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 18 ·
Replies
18
Views
3K