Cells in series #!#Equivalent EMF #!#Examples

Example on Lenz's Law || Motional EMF || Examples on Motional EMF

The plot of the variation of potential difference across a combination of three identical cells in series, versus current is as shown in figure. What is the emf and internal resistance of each cell?

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

Examples on direction OF induced current || Motional EMF||Examples on motional EMF

A person connects four 1/4Omega cells in series but one cell has its terminal reversed. The external resistance is 1 Omega. If each cell has an emf of 1.5 V, the currenet folowing is

Grouping OF Cell || Series & Parallel Combination OF Cells || Examples on Grouping OF Cells

the nonideal batteries are connected in series. Consider the following statements : (A)The equivalent emf is larger than either of the two emfs. (B) the equivalent internal resistances is smaller than either of the two internal resistances.