What is meant by a series combination of cell?Explain this by giving suitable diagram
Answers
Explanation:
There mainly two basic combinations of cells are i) series connection and ii) parallel connection. Another combination can be possible which is called iii) mix combination. It is mix combination of series and parallel connection.
i) Cells in Series
Positive terminal of a cell is connected to another cell negative terminal is called series connection of battery. In this way many cell can be connected in series.
In other words if some cell are connected with one common point is called series connection.
If n number of cell has same electromotive force E, internal resistance r connected in series with a external resistance R as shown in figure. As the cells are connected in series so flow of current of all cell is the same direction.
Total electromotive force of the circuit = E + E + E + …….. + nth = nE
Equivalent internal resistance of the circuit = r + r + r + ……. + nth = nr
Internal resistance of the cells and external resistance R are connected in series so that total resistance of this circuit = nr + R
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