Question

state Ohm's law and write the condition in which this law is obeyed

Answer 1

At constant temperature the current flowing through a conductor is directly proportional to the porential difference across its ends. This law is obeyed when the physical conditions of the conductor remains same.
hope this may help.....

Answer 2

Hey Friend
Here is your answer

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.
Ohm's law is obeyed when the physical conditions of a conductor remains constant.

Hope this helped you
Have a nice day.