Ohm's law is an important derivation in physics. It was derived by GS Ohm in 1828. It states that Electric potential across a conductor is directly proportional to electrical current.
where V is the electric potential across an conductor and I is the amount of current flowing through the conductor
On removing the proportionality sign,
On removing the proportionality sign,where R is an constant. R is equal to the electrical resistance of the conductor.