Batteries can either be connected in series, parallel or a combination of both. In a series circuit, electrons travel in a single path and in the parallel circuit they travel through many branches.
In series, cells are joined end to end so that the same amount of current flows through each cell in the circuit.
- A set of batteries are said to be connected in series when the positive terminal of one cell is connected to the negative terminal of the succeeding cell.
- The overall emf of the battery is the algebraic sum of all individual cells connected in series.
- In a series circuit, the same amount of current flows through all the components placed in it.