Question

Define ohm's law & ohm's resistance

Answer 1

Ohm's law states that current flowing through a conductor is directly proportional  to  the potential difference applied across its ends provided itd temperature is constant.
According to Ohm's law, if a current I flows through a wire when potential difference across the ends of the wire is V, the resistence offered  by the wire to the flow of current  is given as below:-
     R=V/I

Answer 2

Ohm's Law- At constant Temp. current is directly proportional to the Potential Difference across the two points.

Ohm's Resistance- Current I flows through a wire whose potential difference across the ends of the wire is V, then the resistance offered by  the wire to the flow of current 
R=V/I