Discuss the grouping of two unidentical cells in(i) series and (ii) parallel and find their equivalent emf and internal resistance.

If a number of cells are connected in parallel then write their equivalent emf and internal resistance.

Find relation between emf and internal resistance of a cell.

If three cell are connected in parallel then equivalent emf……. and equivalent internal resistance is …..

If three cell are connected in parallel then equivalent emf……. and equivalent internal resistance is …..

n identical cells, each of emf e and internal resistance r, are first connected in series and then in parallel. What will be the ratio of the emfs and of the internal resistances of these two cell combinations?

Two cells, of e.m.f. 2E and E, and internal resistance 2 r and r respectivley are connected in parallel. Obtain the expression for the equivalent e.m.f and the internal resistance of the combination?

If E_(1) , E_(2),E_(3) ... E_(n) represent emfs of a number of cells of internal resistances r_(1) , r_(2) , ... r_(n) then mention their equivalent emf and internal resistance when these are connected in series.