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Results tagged with electrical-resistance
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user 269078
The tag applies to electrical resistance and resistors. DO NOT USE THIS TAG for non-electrical resistance.
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What do $\ell$ and $A$ precisely mean in the formula for electrical resistance?
In the formula the area(A) is perpendicular to the flow current,
The length (l) is along the flow of current.
Consider an example that will clear you doubt.
Consider a hollow cylinder with inner radi …
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