Question

State Ohms law?

Answer 1

$\text{Ohm's law:}$

It states that the current$\left(I\right)$ flowing through a conductor is directly proportional to the potential difference$\left(V\right)$ across the conductor provided all physical conditions and temperature remains constanti.e. $I\propto V$

$\therefore V=IR$

Where $R$ is the resistance of the conductor.

$\text{Alternative form of Ohm's Law:}$

It states that, the current density$\left(J\right)$ through a conductor is proportional to the Electric Field$\left(E\right)$ across it.

$J=\sigma E$

Where $\sigma$ is the conductivity of the conductor.