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Resistance of Wire Formula

GoResistance Formula

GoResistance on Stretching of Wire Formula

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Electric resistance is the opposition to the flow of an electric current and is measured in ohms, representing how much a material hinders electric current flow. Check FAQs

R = ρ \cdot \frac{L wire}{A wire}

R - Electric Resistance?ρ - Resistivity?L_wire - Wire Length?A_wire - Cross-Sectional Area of Wire?

Resistance of Wire Example

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Here is how the Resistance of Wire equation looks like with Values.

Here is how the Resistance of Wire equation looks like with Units.

Here is how the Resistance of Wire equation looks like.

15 = 0.6 \cdot \frac{35}{1.4}

15Ω = 0.6Ω*mm \cdot \frac{35mm}{1.4mm²}

15 = 0.6 \cdot \frac{35}{1.4}

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Resistance of Wire Solution

Follow our step by step solution on how to calculate Resistance of Wire?

FIRST Step Consider the formula

R = ρ \cdot \frac{L wire}{A wire}

Next Step Substitute values of Variables

∴

R = 0.6Ω*mm \cdot \frac{35mm}{1.4mm²}

Next Step Convert Units

∴

R = 0.0006Ω*m \cdot \frac{0.035m}{1.4E-6m²}

Next Step Prepare to Evaluate

∴

R = 0.0006 \cdot \frac{0.035}{1.4E-6}

LAST Step Evaluate

∴

R = 15Ω

Resistance of Wire Formula Elements

Variables

Electric Resistance

Electric resistance is the opposition to the flow of an electric current and is measured in ohms, representing how much a material hinders electric current flow.

Symbol: R

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Electric Resistance

Resistivity

Resistivity is the opposition to the flow of electric current in a conductor, measured by the degree to which it resists the flow of electric charge.

Symbol: ρ

Measurement: Electric ResistivityUnit: Ω*mm

Note: Value can be positive or negative.

Formulas to find Resistivity

Wire Length

Wire Length is the length of a wire that affects the resistance and conductivity of an electric circuit, influencing the flow of electric current.

Symbol: L_wire

Measurement: LengthUnit: mm

Note: Value can be positive or negative.

Formulas to find Wire Length

Cross-Sectional Area of Wire

Cross-Sectional Area of Wire is the area of a wire's cross-section, which affects the flow of electric current and resistance in a circuit.

Symbol: A_wire

Measurement: AreaUnit: mm²

Note: Value should be greater than 0.

Formulas to find Cross-Sectional Area of Wire

Other Formulas to find Electric Resistance

Go Resistance

R = \frac{ρ \cdot L conductor}{A}

Go Resistance on Stretching of Wire

R = \frac{Ω \cdot {L wire}^{2}}{{(L f,wire)}^{2}}

Go Temperature Dependence of Resistance

R = R ref \cdot (1 + α \cdot ∆T)

Other formulas in Resistance category

Go Equivalent Resistance in Parallel

R eq,parallel = {(\frac{1}{R} + \frac{1}{Ω})}^{- 1}

Go Internal Resistance using Potentiometer

r = \frac{L - l 2}{l 2} \cdot Ω

Go Resistivity of Material

ρ material = \frac{2 \cdot [Mass-e]}{n \cdot {[Charge-e]}^{2} \cdot 𝛕}

Go Equivalent Resistance in Series

R eq, series = R + Ω

How to Evaluate Resistance of Wire?

Resistance of Wire evaluator uses Electric Resistance = Resistivity*Wire Length/Cross-Sectional Area of Wire to evaluate the Electric Resistance, Resistance of Wire formula is defined as a measure of the opposition to the flow of electric current in a wire, influenced by the wire's material, length, and cross-sectional area, and is a critical parameter in electrical circuit design and analysis. Electric Resistance is denoted by R symbol.

How to evaluate Resistance of Wire using this online evaluator? To use this online evaluator for Resistance of Wire, enter Resistivity (ρ), Wire Length (L_wire) & Cross-Sectional Area of Wire (A_wire) and hit the calculate button.

FAQs on Resistance of Wire

What is the formula to find Resistance of Wire?

The formula of Resistance of Wire is expressed as Electric Resistance = Resistivity*Wire Length/Cross-Sectional Area of Wire. Here is an example- 176.4706 = 0.0006*35/1.4E-06.

How to calculate Resistance of Wire?

With Resistivity (ρ), Wire Length (L_wire) & Cross-Sectional Area of Wire (A_wire) we can find Resistance of Wire using the formula - Electric Resistance = Resistivity*Wire Length/Cross-Sectional Area of Wire.

What are the other ways to Calculate Electric Resistance?

Here are the different ways to Calculate Electric Resistance-

Electric Resistance=(Resistivity*Length of Conductor)/Cross-Sectional Area
Electric Resistance=(Final Resistance*Wire Length^2)/((Final Length of Wire)^2)
Electric Resistance=Resistance at Reference Temperature*(1+Temperature Coefficient of Resistance*Change in Temperature)

Can the Resistance of Wire be negative?

Yes, the Resistance of Wire, measured in Electric Resistance can be negative.

Which unit is used to measure Resistance of Wire?

Resistance of Wire 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 Resistance of Wire can be measured.

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Resistance of Wire Formula

​GoResistance Formula

​GoResistance on Stretching of Wire Formula

Resistance of Wire Example

Resistance of Wire Solution

Resistance of Wire Formula Elements

Other Formulas to find Electric Resistance

Other formulas in Resistance category

How to Evaluate Resistance of Wire?

FAQs on Resistance of Wire

Variable Name

GoResistance Formula

GoResistance on Stretching of Wire Formula