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# State Ohms law?

Solution

## $$\textbf{Ohm's law:}$$ It states that the current$$(I)$$ flowing through a conductor is directly proportional to the potential difference$$(V)$$ across the conductor provided all physical conditions and temperature remains constant i.e. $$I\propto V$$$$\therefore\ \ V = IR$$Where $$R$$ is the resistance of the conductor.$$\textbf{Alternative form of Ohm's Law: }$$It states that, the current density$$(J)$$ through a conductor is proportional to the Electric Field$$(E)$$ across it.$$J = \sigma E$$Where $$\sigma$$ is the conductivity of the conductor.Physics

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