Understanding the Voltage Changes in an Unbalanced Wheatstone Bridge

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SUMMARY

In an unbalanced Wheatstone Bridge, the voltage across resistors R1 and R2 does not change, maintaining that VR2 of a balanced bridge equals VR2 of an unbalanced bridge. The balance condition is defined by the equation R1/R2 = R3/R4, where R4 is the variable resistor. This indicates that even when the bridge is unbalanced, the voltage across VR2 remains constant, which is crucial for qualitative analysis in circuit design.

PREREQUISITES
  • Understanding of Wheatstone Bridge configurations
  • Familiarity with voltage division principles
  • Knowledge of resistor behavior in electrical circuits
  • Basic circuit analysis techniques
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  • Study the implications of unbalanced Wheatstone Bridge on circuit performance
  • Learn about voltage division in complex circuits
  • Explore the effects of varying resistances on bridge balance
  • Investigate practical applications of Wheatstone Bridges in sensor technology
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Electrical engineers, physics students, and anyone involved in circuit analysis or design will benefit from this discussion on Wheatstone Bridge voltage behavior.

msslowlearner
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In an unbalanced Wheatstone Bridge, does the voltage across the resistors R1 and R2 change? In other words is VR2of balanced bridge=VR2 of unbalanced bridge?

I was trying to solve a problem that required qualitative analysis. It says VR2 does not change even though the bridge is unbalanced. How?

The Bridge Balance eqn is R1/R2 = R3/R4, where R4 is the variable resistor. At balanced condition, VR2 = VR4
 
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sorry. I've asked this question again in the HW-CW section. Pls do not reply to this post here.
 

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