__Resistors connected in series__: - If the number of resistance are connected one after another in such a way that the same current flows through each resistance, then the arrangement is called resistance in series.

_{1, }R

_{2 }and R

_{3 }are three resistances connected in a series combination and let

_{1, }V

_{2 }and V

_{3}be the P.D. across resistances R

_{1, }R

_{2 }and R

_{3 }respectively. Let ‘V’ be the P.D. of the cell. Let ‘I’ be the current flow through each resistance.

**If the resistors are connected in series then.**

__Conclusion:__