Six cell each of emf `E` and internal resistance `r` are connected in series. If due to over sight, two cells are connected wrongly, then the equivalent emf and internal resistance of the combination is

Five cells each of emf E and internal resistance r are connecte in series. Due to oversight one cell is connected wrongly . The equivalent emf and internal resistance of the combination is

Five cells each of emf E and internal resistance r are connecte in series. Due to oversight one cell is connected wrongly . The equivalent emf and internal resistance of the combination is

Five cells each of e.m.f E and internal resistance r are connected in series. If due to over sight, one cell is connected wrongly ,the equivalent e.m.f of the combination is

7 cells each of emf epsilon and internal resistance r are to be connected in series. If due to oversight one cell is connected wrongly, the emf and internal resistance of the combination will be :

Four identical cells of emf e and internal resistance r are to be connected in series. Suppose, if one of the cell is connected wrongly, the equivalent emf and effective internal resistance of the combination is:

Four identical cells of emf E and and internal resistance r are to be connected in series . Suppose if one of the cell is connected wrongly , the equivalent emf and effective internal resistance of the combination is

Four identical cells of emf epsilon and internal resistance r are to be connected in series. Suppose, if one of the cell is connected wrongly, then the equivalent emf and effective internal resistance of the combination is

Four identical cells of emf epsilon and internal resistance r are to be connected in series. Suppose, if one of the cell is connected wrongly, then the equivalent emf and effective internal resistance of the combination is