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Internal Resistance using Potentiometer Formula

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Internal Resistance is the opposition to the flow of electric current within a conductor, measured in ohms, affecting the overall circuit performance. Check FAQs

r = \frac{L - l 2}{l 2} \cdot Ω

r - Internal Resistance?L - Length?l₂ - Final Length?Ω - Final Resistance?

Internal Resistance using Potentiometer Example

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Here is how the Internal Resistance using Potentiometer equation looks like with Values.

Here is how the Internal Resistance using Potentiometer equation looks like with Units.

Here is how the Internal Resistance using Potentiometer equation looks like.

12.5 = \frac{1500 - 1200}{1200} \cdot 50

12.5Ω = \frac{1500mm - 1200mm}{1200mm} \cdot 50Ω

12.5 = \frac{1500 - 1200}{1200} \cdot 50

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Internal Resistance using Potentiometer Solution

Follow our step by step solution on how to calculate Internal Resistance using Potentiometer?

FIRST Step Consider the formula

r = \frac{L - l 2}{l 2} \cdot Ω

Next Step Substitute values of Variables

∴

r = \frac{1500mm - 1200mm}{1200mm} \cdot 50Ω

Next Step Convert Units

∴

r = \frac{1.5m - 1.2m}{1.2m} \cdot 50Ω

Next Step Prepare to Evaluate

∴

r = \frac{1.5 - 1.2}{1.2} \cdot 50

LAST Step Evaluate

∴

r = 12.5Ω

Internal Resistance using Potentiometer Formula Elements

Variables

Internal Resistance

Internal Resistance is the opposition to the flow of electric current within a conductor, measured in ohms, affecting the overall circuit performance.

Symbol: r

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Internal Resistance

Length

Length is the distance between two points in a circuit, measured in meters, and is a fundamental parameter in electric current calculations.

Symbol: L

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Length

Final Length

Final Length is the total length of a wire or conductor in an electric circuit, including all its components and connections.

Symbol: l₂

Measurement: LengthUnit: mm

Note: Value can be positive or negative.

Formulas to find Final Length

Final Resistance

Final Resistance is the opposition to the flow of electric current in a circuit, measured in ohms, and depends on the material and its dimensions.

Symbol: Ω

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Final Resistance

Other formulas in Resistance category

Go Equivalent Resistance in Parallel

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

Go Resistance

R = \frac{ρ \cdot L conductor}{A}

Go Resistance of Wire

R = ρ \cdot \frac{L wire}{A wire}

Go Resistance on Stretching of Wire

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

How to Evaluate Internal Resistance using Potentiometer?

Internal Resistance using Potentiometer evaluator uses Internal Resistance = (Length-Final Length)/Final Length*Final Resistance to evaluate the Internal Resistance, Internal Resistance using Potentiometer formula is defined as a method to measure the internal resistance of a cell or battery using a potentiometer, which is a type of voltage divider, to determine the opposition to current flow within the cell or battery, providing an accurate measurement of its internal resistance. Internal Resistance is denoted by r symbol.

How to evaluate Internal Resistance using Potentiometer using this online evaluator? To use this online evaluator for Internal Resistance using Potentiometer, enter Length (L), Final Length (l₂) & Final Resistance (Ω) and hit the calculate button.

FAQs on Internal Resistance using Potentiometer

What is the formula to find Internal Resistance using Potentiometer?

The formula of Internal Resistance using Potentiometer is expressed as Internal Resistance = (Length-Final Length)/Final Length*Final Resistance. Here is an example- 12.5 = (1.5-1.2)/1.2*50.

How to calculate Internal Resistance using Potentiometer?

With Length (L), Final Length (l₂) & Final Resistance (Ω) we can find Internal Resistance using Potentiometer using the formula - Internal Resistance = (Length-Final Length)/Final Length*Final Resistance.

Can the Internal Resistance using Potentiometer be negative?

Yes, the Internal Resistance using Potentiometer, measured in Electric Resistance can be negative.

Which unit is used to measure Internal Resistance using Potentiometer?

Internal Resistance using Potentiometer 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 Internal Resistance using Potentiometer can be measured.

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Internal Resistance using Potentiometer Formula

Internal Resistance using Potentiometer Example

Internal Resistance using Potentiometer Solution

Internal Resistance using Potentiometer Formula Elements

Other formulas in Resistance category

How to Evaluate Internal Resistance using Potentiometer?

FAQs on Internal Resistance using Potentiometer

Variable Name