Question

Define ohm law and derive ohm’s formula

Answer 1

Ohm's law : "The current flowing through a Conductor is is directly proportional to the potential difference applied across it's ends, provided the temperature and other physical conditions remain unchanged.

Answer 2

Hi !!

Ohm's Law :-
It states that , on a constant temperature , the current  I , flowing through the electric circuit , is directly proportional to the potential difference V , across its ends.
 V ∝ I
  I ∝ V

V/ I = R , constant of proportionality

R = Resistance [ opposes flow of current ]

V  = IR 

R = V/I

I = V / R