The magnitude of current flowing between two end points of a conductor is proportional to the potential difference between them and is called as:

According to Ohm’s Law, the potential difference (V) between two terminals of a current-carrying conductor is directly proportional to the current (I), flowing through it. The proportionality constant R, is the resistance of the conductor. Thus, V α I
or V = I × R
or I = V/R
or R = V/I.