I is the current ( Amps) in the Ohm`s Law formula; V= I*R

ohmic conductor does obey ohm 's law.

non ohmic conductor does not obey ohm's law.

Wolfgang Ohm has written:

'Die anerkannte Aussperrung' -- subject(s): Law and legislation, Strikes and lockouts

OHM, who else?!

They're not! The relationship you describe is derived from the definition of the ohm, not from Ohm's Law. This tells us that resistance is equal to the voltage divided by the current.

Ohm's Law merely tells us that the ratio of voltage to current is constant for variations in voltage -which, unfortunately, is not actually true. In other words, Ohm's Law is not true!