Question

While studying the dependence of potential difference (V) across a
sistor on the current (1) passing through it, in order to determine
the resistance of the resistor, a student took 5 readings for different
values of current and plotted a graph between V and I. He got a
straight line graph passing through the origin. What does the
straight line signify? Write the method of determining resistance of
the resister using this graph.​

Answer 1

The straight lines signify the resistance and coming of the straight lines denotes that the ratio of V and I in every reading is same

If current is on x-axis and potential difference on y-axis then slope represents resistance which can be find out by taking diff. Of any two plotted values of I and V

But If current is on y-axis and potential difference on x- axis then slope represents the reciprocal of resistance

Hope it will help u

Plz mark it as brainliest

Answer 2

The straight lines signify the resistance and coming of the straight lines denotes that the ratio of V and I in every reading is same

If current is on x-axis and potential difference on y-axis then slope represents resistance which can be find out by taking diff. Of any two plotted values of I and V

But If current is on y-axis and potential difference on x- axis then slope represents the reciprocal of resistance

Hope it will help u