Resistance Formula
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.
Electric resistance equals the product of the length and electric resistivity divided by the area.
Formula
![Copy to Clipboard QuantityVariable["R", "ElectricResistance"] == (QuantityVariable["L", "Length"]*QuantityVariable["ρ", "ElectricResistivity"])/QuantityVariable["A", "Area"]](https://www.wolframcloud.com/objects/resourcesystem/marketplacestorage/resources/480/480d74d8-9a1a-472c-bf4e-5a0fd97fb3c0/Webpage/FormulaImage.png)
| symbol | description | physical quantity |
|---|---|---|
| R | electric resistance | "ElectricResistance" |
| A | area | "Area" |
| L | length | "Length" |
| ρ | electric resistivity | "ElectricResistivity" |
Forms
Examples
Get the resource:
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Get the formula:
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Use some values:
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