Question

state ohm's law and define its verification

Answer 1

Ohms law states that  the current through a conductor between two points is directly proportional to the potential difference across the two points, and inversely proportional to the resistance between them.
V=IR
I=V/R
R=V/I

Answer 2

In the definite physical situation the electric current flowing through the conductor is directly propotional to the potential difference
That means I propotional V
Thus v=IR
R=V/I
This law is called Ohm`s law