Question

Two students perform the experiments on series and parallel combinations of two given resistors R₁ and R₂ and the following V-I graphs.

Which of the graph(s) is/are correctly labelled in terms of the words series and parallel? Justify your answer.

Answer 1

The slope of the graph V vs. I gives us resistance. 

Both the given graphs are correctly labelled in terms of the words ‘series’ and ‘parallel’.

As,

The equivalent resistance of parallel combination is less than that of series combination. 

Both the graphs indicate a larger current for parallel combination than that for series combination for a given value of R.

Hence, both the graphs are correct.