# Other units of resistance [closed]

Resistance is $\frac{V}{I}$, and we get the unit $\Omega$.

Another unit is $\frac{W}{A^2}$. How do you derive that unit?

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## closed as off-topic by DavePhD, Kyle Kanos, Brandon Enright, Qmechanic♦Apr 30 '14 at 12:29

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Watts are a unit of power, $P=IV$. considering the units: $$\frac{[W]}{[A]^2} = \frac{[A][V]}{[A]^2} = \frac{[V]}{[A]}$$ therefore the units are the same.