Question

The accurate representation of a series combination of cells obtaining maximum potential is

• A. $\left(\mathrm{i}\right)$
• B. $\left(\mathrm{ii}\right)$
• C. $\left(\mathrm{iii}\right)$
• D. $\left(\mathrm{iv}\right)$

Answer 1

The correct option is A

$\left(\mathrm{i}\right)$

Step 1. Explanation for the correct option

1. Cells are connected in series if the negative terminal of one cell is connected with the positive terminal of the other cell
2. Current can only flow through cell when negative charge is adjacent to positive charge and vice versa.
3. Only figure $\left(\mathrm{i}\right)$ satisfy the above condition.
4. Therefore it is the correct representation of the series combination of cells.

Step 2. Explanation for the in correct option

In figure $\left(ii\right)$

Negative terminal is adjacent to the negative terminal and the positive terminal is adjacent to the positive terminal

So Option B is not correct

In figure $\left(iii\right)$

Negative terminal is adjacent to negative terminal and positive terminal is adjacent to positive terminal

So Option C is not correct

In figure $\left(iv\right)$

Negative terminal is adjacent to negative terminal

So Option D is not correct

Hence, option A is correct.