Which one of the following statements does not represents Ohm’s law?

(i) current / potential difference = constant

(ii) potential difference / current = constant

(iii) current = resistance x potential difference

As the resistance of the conductor is a constant quantity at constant temperature and same dimensions and also in Ohm’s law resistance is specified as the constant of proportionality, so the first two options are correct,

and the statement of Ohm’s law is V = I× R , not I = R× V through which the third statement is wrong but is a correct answer.