n identical cells each of e.m.f. E and internal resistance r are connected in series. An external resistance R is connected in series to this combination. The current through R is

n-identical cells each of emf E and internal resistance r are connected in series. Find the expression for current in the circuit given below

n-identical cells each of emf E and internal resistance r are connected in series. Find the expression for current in the circuit given below.

n cells of e.m.f E and internal resistance r are connected in series with an external resistance R . the current will increase n times that of a single cell, if

n electric cells of emf e and internal resistance r each are connected in series.What is the emf of this combination.

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

Four cells, each of emf E and internal resistance r, are connected in series across an external resistance reverse. Then, the current in the external circuit is

Four cells, each of emf E and internal resistance r, are connected in series across an external resistance R. By mistake one of the cells is connected in reverse. Then, the current in the external circuit is