Three cells of potential 2 V, each connected in series therefore the potential difference of the battery will be 2 V + 2 V + 2 V = 6V. The following circuit diagram shows three resistors of resistances 5 ?, 8 ? and 12 ? respectively connected in series and a battery of potential 6 V and a plug key which is closed means the current is flowing in the circuit.
schematic diagram of a circuit consisting of a battery of three cells
