Question

A student performs an experiment on studying the dependence of the current (I) flowing through a conductor on the potential difference (V) applied across it by setting up his circuit as shown. He records four values of current 'I' by keeping the sliding contact J, in the positions K, L, M and N, one by one. The corresponding points on his V-I graph are labelled as Pl, P2, P3 and P4. The point P3, would correspond to the case when the sliding contact,’ J’ , is in the position:
(1 Point)​

Answer 1

A student carries out the experiment for studying the dependence of current (I) flowing through a resistor system of R1 and R2 on the potential difference (V) applied to it by connecting the resistor system to points X and Y of the measuring circuit as shown :

The average value of the ratio V/I, of his observations, would then be equal