Answer :

The graph suggests that the current flowing in the conductor is directly proportional to the potential difference across the conductor.

The slope of the graph is the resistance of the conductor.


R = (V2 - V1)/(I2 - I1)


R = (0.8 - 0.4)/(0.3 - 0.2) = 0.4/0.1 = 4 ohm


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