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Unknown Resistance in Wheatstone Bridge Formula

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Resistance 4 in Wheatstone Bridge is the unknown resistance value which is determined by balancing the known bridge resistances. Check FAQs

R 4 = R 3 \cdot (\frac{R 2}{R 1})

R₄ - Resistance 4 in Wheatstone Bridge?R₃ - Resistance 3 in Wheatstone Bridge?R₂ - Resistance 2 in Wheatstone Bridge?R₁ - Resistance 1 in Wheatstone Bridge?

Unknown Resistance in Wheatstone Bridge Example

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Here is how the Unknown Resistance in Wheatstone Bridge equation looks like with Values.

Here is how the Unknown Resistance in Wheatstone Bridge equation looks like with Units.

Here is how the Unknown Resistance in Wheatstone Bridge equation looks like.

33.0001 = 65 \cdot (\frac{39}{76.818})

33.0001Ω = 65Ω \cdot (\frac{39Ω}{76.818Ω})

33.0001 = 65 \cdot (\frac{39}{76.818})

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Unknown Resistance in Wheatstone Bridge Solution

Follow our step by step solution on how to calculate Unknown Resistance in Wheatstone Bridge?

FIRST Step Consider the formula

R 4 = R 3 \cdot (\frac{R 2}{R 1})

Next Step Substitute values of Variables

∴

R 4 = 65Ω \cdot (\frac{39Ω}{76.818Ω})

Next Step Prepare to Evaluate

∴

R 4 = 65 \cdot (\frac{39}{76.818})

Next Step Evaluate

∴

R 4 = 33.0000781066937Ω

LAST Step Rounding Answer

∴

R 4 = 33.0001Ω

Unknown Resistance in Wheatstone Bridge Formula Elements

Variables

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.

Formulas to find Resistance 4 in Wheatstone Bridge

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.

Formulas to find Resistance 3 in Wheatstone Bridge

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.

Formulas to find Resistance 2 in Wheatstone Bridge

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.

Formulas to find Resistance 1 in Wheatstone Bridge

Other formulas in Wheatstone Bridge category

Go Thevenin Resistance of Wheatstone Bridge

R th = (\frac{R 1 \cdot R 3}{R 1 + R 3}) + (\frac{R 2 \cdot R 4}{R 2 + R 4})

Go Galvanometer Current in Wheatstone Bridge

I G = \frac{V th}{R th + R G}

How to Evaluate Unknown Resistance in Wheatstone Bridge?

Unknown Resistance in Wheatstone Bridge evaluator uses Resistance 4 in Wheatstone Bridge = Resistance 3 in Wheatstone Bridge*(Resistance 2 in Wheatstone Bridge/Resistance 1 in Wheatstone Bridge) to evaluate the Resistance 4 in Wheatstone Bridge, The unknown Resistance in Wheatstone Bridge formula is used to calculate the value of the unknown resistance by balancing the other resistances of the Wheatstone bridge. Resistance 4 in Wheatstone Bridge is denoted by R₄ symbol.

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

FAQs on Unknown Resistance in Wheatstone Bridge

What is the formula to find Unknown Resistance in Wheatstone Bridge?

The formula of Unknown Resistance in Wheatstone Bridge is expressed as Resistance 4 in Wheatstone Bridge = Resistance 3 in Wheatstone Bridge*(Resistance 2 in Wheatstone Bridge/Resistance 1 in Wheatstone Bridge). Here is an example- 33.00008 = 65*(39/76.818).

How to calculate Unknown Resistance in Wheatstone Bridge?

With Resistance 3 in Wheatstone Bridge (R₃), Resistance 2 in Wheatstone Bridge (R₂) & Resistance 1 in Wheatstone Bridge (R₁) we can find Unknown Resistance in Wheatstone Bridge using the formula - Resistance 4 in Wheatstone Bridge = Resistance 3 in Wheatstone Bridge*(Resistance 2 in Wheatstone Bridge/Resistance 1 in Wheatstone Bridge).

Can the Unknown Resistance in Wheatstone Bridge be negative?

No, the Unknown Resistance in Wheatstone Bridge, measured in Electric Resistance cannot be negative.

Which unit is used to measure Unknown Resistance in Wheatstone Bridge?

Unknown Resistance in 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 Unknown Resistance in Wheatstone Bridge can be measured.

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Unknown Resistance in Wheatstone Bridge Formula

Unknown Resistance in Wheatstone Bridge Example

Unknown Resistance in Wheatstone Bridge Solution

Unknown Resistance in Wheatstone Bridge Formula Elements

Other formulas in Wheatstone Bridge category

How to Evaluate Unknown Resistance in Wheatstone Bridge?

FAQs on Unknown Resistance in Wheatstone Bridge

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