Thevenin Resistance of Wheatstone Bridge Formula

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Thevenin Resistance in Wheatstone Bridge is the equivalent resistance seen at the output terminals when all the independent voltage and current sources are replaced with their equivalents. Check FAQs
Rth=(R1R3R1+R3)+(R2R4R2+R4)
Rth - Thevenin Resistance in Wheatstone Bridge?R1 - Resistance 1 in Wheatstone Bridge?R3 - Resistance 3 in Wheatstone Bridge?R2 - Resistance 2 in Wheatstone Bridge?R4 - Resistance 4 in Wheatstone Bridge?

Thevenin Resistance of Wheatstone Bridge Example

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With units
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Here is how the Thevenin Resistance of Wheatstone Bridge equation looks like with Values.

Here is how the Thevenin Resistance of Wheatstone Bridge equation looks like with Units.

Here is how the Thevenin Resistance of Wheatstone Bridge equation looks like.

53.0833Edit=(76.818Edit65Edit76.818Edit+65Edit)+(39Edit33Edit39Edit+33Edit)
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Thevenin Resistance of Wheatstone Bridge Solution

Follow our step by step solution on how to calculate Thevenin Resistance of Wheatstone Bridge?

FIRST Step Consider the formula
Rth=(R1R3R1+R3)+(R2R4R2+R4)
Next Step Substitute values of Variables
Rth=(76.818Ω65Ω76.818Ω+65Ω)+(39Ω33Ω39Ω+33Ω)
Next Step Prepare to Evaluate
Rth=(76.8186576.818+65)+(393339+33)
Next Step Evaluate
Rth=53.0832951388399Ω
LAST Step Rounding Answer
Rth=53.0833Ω

Thevenin Resistance of Wheatstone Bridge Formula Elements

Variables
Thevenin Resistance in Wheatstone Bridge
Thevenin Resistance in Wheatstone Bridge is the equivalent resistance seen at the output terminals when all the independent voltage and current sources are replaced with their equivalents.
Symbol: Rth
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
Resistance 1 in Wheatstone Bridge
Resistance 1 in Wheatstone Bridge is the known resistance value against which an unknown resistance can be measured or compared.
Symbol: R1
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
Resistance 3 in Wheatstone Bridge
Resistance 3 in Wheatstone Bridge is the known resistance value against which an unknown resistance can be measured or compared.
Symbol: R3
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
Resistance 2 in Wheatstone Bridge
Resistance 2 in Wheatstone Bridge is the unknown resistance value which is determined by balancing the known bridge resistances.
Symbol: R2
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
Resistance 4 in Wheatstone Bridge
Resistance 4 in Wheatstone Bridge is the unknown resistance value which is determined by balancing the known bridge resistances.
Symbol: R4
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.

Other formulas in Wheatstone Bridge category

​Go Unknown Resistance in Wheatstone Bridge
R4=R3(R2R1)
​Go Galvanometer Current in Wheatstone Bridge
IG=VthRth+RG

How to Evaluate Thevenin Resistance of Wheatstone Bridge?

Thevenin Resistance of Wheatstone Bridge evaluator uses Thevenin Resistance in Wheatstone Bridge = ((Resistance 1 in Wheatstone Bridge*Resistance 3 in Wheatstone Bridge)/(Resistance 1 in Wheatstone Bridge+Resistance 3 in Wheatstone Bridge))+((Resistance 2 in Wheatstone Bridge*Resistance 4 in Wheatstone Bridge)/(Resistance 2 in Wheatstone Bridge+Resistance 4 in Wheatstone Bridge)) to evaluate the Thevenin Resistance in Wheatstone Bridge, The Thevenin Resistance of Wheatstone Bridge represents the equivalent resistance seen at the output terminals of the bridge when all the independent voltage and current sources are replaced with their Thevenin equivalents. Thevenin Resistance in Wheatstone Bridge is denoted by Rth symbol.

How to evaluate Thevenin Resistance of Wheatstone Bridge using this online evaluator? To use this online evaluator for Thevenin Resistance of Wheatstone Bridge, enter Resistance 1 in Wheatstone Bridge (R1), Resistance 3 in Wheatstone Bridge (R3), Resistance 2 in Wheatstone Bridge (R2) & Resistance 4 in Wheatstone Bridge (R4) and hit the calculate button.

FAQs on Thevenin Resistance of Wheatstone Bridge

What is the formula to find Thevenin Resistance of Wheatstone Bridge?
The formula of Thevenin Resistance of Wheatstone Bridge is expressed as Thevenin Resistance in Wheatstone Bridge = ((Resistance 1 in Wheatstone Bridge*Resistance 3 in Wheatstone Bridge)/(Resistance 1 in Wheatstone Bridge+Resistance 3 in Wheatstone Bridge))+((Resistance 2 in Wheatstone Bridge*Resistance 4 in Wheatstone Bridge)/(Resistance 2 in Wheatstone Bridge+Resistance 4 in Wheatstone Bridge)). Here is an example- 53.0833 = ((76.818*65)/(76.818+65))+((39*33)/(39+33)).
How to calculate Thevenin Resistance of Wheatstone Bridge?
With Resistance 1 in Wheatstone Bridge (R1), Resistance 3 in Wheatstone Bridge (R3), Resistance 2 in Wheatstone Bridge (R2) & Resistance 4 in Wheatstone Bridge (R4) we can find Thevenin Resistance of Wheatstone Bridge using the formula - Thevenin Resistance in Wheatstone Bridge = ((Resistance 1 in Wheatstone Bridge*Resistance 3 in Wheatstone Bridge)/(Resistance 1 in Wheatstone Bridge+Resistance 3 in Wheatstone Bridge))+((Resistance 2 in Wheatstone Bridge*Resistance 4 in Wheatstone Bridge)/(Resistance 2 in Wheatstone Bridge+Resistance 4 in Wheatstone Bridge)).
Can the Thevenin Resistance of Wheatstone Bridge be negative?
No, the Thevenin Resistance of Wheatstone Bridge, measured in Electric Resistance cannot be negative.
Which unit is used to measure Thevenin Resistance of Wheatstone Bridge?
Thevenin Resistance of Wheatstone Bridge is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Thevenin Resistance of Wheatstone Bridge can be measured.
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