Question

Six cells of potential difference 1.5 V are connected in series and an identical same series is connected in parallel with this series, then what is the effective potential difference of this combination?

Answer 1

Answer:

Total Potential = 9V  

Explanation:

First of all we would take first case, where 6 cells are connected in series,

Therefore, there potential difference would just get added up

Therefore, Total Potential Difference = 6 x 1.5 V

                                                              = 9 V

So, now they are saying that this series connection is connected with identical series circuit, but in parallel combination.

[Note:- Here, both the series circuit have 9V potential difference each.]

So, whenever batteries/cells are connected in parallel, the total potential difference is same as the potential difference of one cell/battery.

Therefore, if we talk of total potential difference after connecting both the circuits in parallel, it should be 9V only