Question

what is ohms law and relation between the graph of v and i

Answer 1

Ohm's Law states that the current through a metallic conductor is proportional to the potentialdifference across it if the temperature remains constant.

 Ohm's law defines the relationship between the voltage, current, and resistance in an electric circuit: i = v/r. The current is directly proportional to the voltage and inversely proportionalto the resistance

Hope it helps:)

Answer 2

According to ohm's law , at consant temprature , the current (I) flowing through a conductor is directly proportional to the potential difference ( V ) across its ends

( I ) is directly proportional to ( V )
( V ) is directly proportional to ( I )
V = i×r

where R is a costant called ' resistence ' of the conductor