Four cells of identical emf and internal resistance are

Last updated: 6/13/2023

Four cells of identical emf and internal resistance are connected in series to a variable resistor The following graph shows the variation of terminal voltage of the combination with current output V in volt 5 6 4 2 2 8 1 4 0 5 1 0 1 5 2 0 in amp a What is emf of each cell b Calculate internal resistance of each cell c For what current from the cells does maximum power dissipation