V-1 graph for a conductor is as shown in figure.

(i) What do you infer from this graph ?
(ii) State the law exprased here.
Name the physical quantity repraented by the slope of this graph and state its SI unit

Explanation

(i) Inference drawn is that V `alpha` I
(ii) The states that the current passing through a Law conductor is directly proportional to the potential difference across Its ends, provided the physical conditions like temperature, density, etc, remain unchanged. This is ohm.s law.
(iii) Slope of the graph represent : Resistance, unit is ohm.