Internal Resistance using Potentiometer Calculator

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Voltage and Current Measuring Instruments

✖Length is the measurement or extent of something from end to end.ⓘ Length [L]			+10% -10%
✖Final Length is the measurement or extent of something from end to end.ⓘ Final Length [l₂]			+10% -10%
✖Final Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).ⓘ Final Resistance [Ω]			+10% -10%

✖Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm.ⓘ Internal Resistance using Potentiometer [R]

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Formula

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Internal Resistance using Potentiometer

Formula

`"R" = ("L"-"l"_{"2"})/"l"_{"2"}*"Ω"`

Example

`"12.5Ω"=("1500mm"-"1200mm")/"1200mm"*"50Ω"`

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Internal Resistance using Potentiometer Solution

STEP 0: Pre-Calculation Summary

Formula Used

Resistance = (Length-Final Length)/Final Length*Final Resistance
R = (L-l₂)/l₂*Ω
This formula uses 4 Variables

Variables Used

Resistance - (Measured in Ohm) - Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm.
Length - (Measured in Meter) - Length is the measurement or extent of something from end to end.
Final Length - (Measured in Meter) - Final Length is the measurement or extent of something from end to end.
Final Resistance - (Measured in Ohm) - Final Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).

STEP 1: Convert Input(s) to Base Unit

Length: 1500 Millimeter --> 1.5 Meter (Check conversion here)
Final Length: 1200 Millimeter --> 1.2 Meter (Check conversion here)
Final Resistance: 50 Ohm --> 50 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R = (L-l₂)/l₂*Ω --> (1.5-1.2)/1.2*50

Evaluating ... ...

R = 12.5

STEP 3: Convert Result to Output's Unit

12.5 Ohm --> No Conversion Required

FINAL ANSWER

12.5 Ohm <-- Resistance

(Calculation completed in 00.004 seconds)

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Birsa Institute of Technology (BIT), Sindri

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< 8 Resistance Calculators

Temperature Dependence of Resistance

Go Resistance = Resistance at Reference Temperature*(1+Temperature Coefficient of Resistance*Change in Temperature)

Resistivity of Material

Go Resistivity = (2*[Mass-e])/(Number of Free Charge Particles per Unit Volume*[Charge-e]^2*Relaxation time)

Internal Resistance using Potentiometer

Go Resistance = (Length-Final Length)/Final Length*Final Resistance

Resistance

Go Resistance = (Resistivity*Length of Conductor)/Cross-Sectional Area

Resistance on Stretching of Wire

Go Resistance = (Final Resistance*Length^2)/((Final Length)^2)

Resistance of Wire

Go Resistance = Resistivity*Length/Cross-Sectional Area

Equivalent Resistance in Parallel

Go Equivalent Resistance = (1/Resistance+1/Final Resistance)^(-1)

Equivalent Resistance in Series

Go Equivalent Resistance = Resistance+Final Resistance

Internal Resistance using Potentiometer Formula

Resistance = (Length-Final Length)/Final Length*Final Resistance
R = (L-l₂)/l₂*Ω

How can we find internal resistance of cell using potentiometer ?

We know that I= xl₂ /R , also I= ε' /r'+R
so , xl₂ /R = ε' /r'+R => xl₁ / r' + R = xl₂ /R
=> r' = [l₁ - l₂] / l₂*R

How to Calculate Internal Resistance using Potentiometer?

Internal Resistance using Potentiometer calculator uses Resistance = (Length-Final Length)/Final Length*Final Resistance to calculate the Resistance, Internal resistance using potentiometer is an application of potentiometer in which we can find the internal resistance of the cell. Resistance is denoted by R symbol.

How to calculate Internal Resistance using Potentiometer using this online calculator? To use this online calculator for Internal Resistance using Potentiometer, enter Length (L), Final Length (l₂) & Final Resistance (Ω) and hit the calculate button. Here is how the Internal Resistance using Potentiometer calculation can be explained with given input values -> 12.5 = (1.5-1.2)/1.2*50.

FAQ

What is Internal Resistance using Potentiometer?

Internal resistance using potentiometer is an application of potentiometer in which we can find the internal resistance of the cell and is represented as R = (L-l₂)/l₂*Ω or Resistance = (Length-Final Length)/Final Length*Final Resistance. Length is the measurement or extent of something from end to end, Final Length is the measurement or extent of something from end to end & Final Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω).

How to calculate Internal Resistance using Potentiometer?

Internal resistance using potentiometer is an application of potentiometer in which we can find the internal resistance of the cell is calculated using Resistance = (Length-Final Length)/Final Length*Final Resistance. To calculate Internal Resistance using Potentiometer, you need Length (L), Final Length (l₂) & Final Resistance (Ω). With our tool, you need to enter the respective value for Length, Final Length & Final Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Resistance?

In this formula, Resistance uses Length, Final Length & Final Resistance. We can use 4 other way(s) to calculate the same, which is/are as follows -

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

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