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Wheatstone Bridge Question

  • Thread starter munchy35
  • Start date
  • #1
27
0

Homework Statement



Suppose that in the course of a measurement the bridge is balanced and then the power supply voltage changes by 10%, what will happen to the balance of the bridge? Explain.

Homework Equations



No equations.

The Attempt at a Solution



When I think it out logically, I don't think the balance should be affected. Because if the voltage increases, the values of the resistances will still be balanced. Is this wrong?

But then I think if the voltage increases, you have to balance the bridge out again.
 

Answers and Replies

  • #2
1,953
248
What is the condition for the four resistances to make a wheatstone bridge balanced? Does the supply voltage come into it?
 
  • #3
27
0
R1/R2 = R3/R4

i don't think these values would change if the voltage changes 10% during the measurements.
 

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