Four identical cells each having emf E and internal resistance r are connected in series to form a loop ABCD as shown in figure . Find potential difference across AB and AC .

Four cells each of emf E and internal resistance r are connected in series to form a loop ABCD. Find potential difference across (1) AB, (2) AC

n identical cells, each of emf E and internal resistance r, are joined in series to form a closed circuit. Find the potential difference across any one cell.

N identical current sources each of emf E and internal resistance r are connected to form a closed loop as shown in figure. The potential difference between points A and B which divides the circuit into n and (N-n) units is

Four idential cells each having e.m.f. E, internal resistance r are connected as shown in figure. Find the potential difference between: (i) A and B (ii) A and C

A group of n identical cells each of EMF E and internal resistance r are joined in series to form a loop as shown . The terminal voltage across each cell is

A group of six identical cells each of emf E and internal resistance r are joined in series to form a loop. The terminal voltage across each cells is

n identical cells each of emfe and internal resistance r are joined in series so as to form a closed circuit. The P.D. across any one cell is

Two identical batteries, each having emf of 1.8 V and of equal internal resistances are connected as shown in the figure. Potential difference between A and B will be equal to (Ignore the resistance of lead wires)

Seven identical cells each of e.m.f. E and internal resistance r are connected as shown . The potential difference between A and B is

n identical cells, each of emf epsilon and internal resistance r, are joined in series to form a closed cirucit. One cell A is joined with reversed polarity. The potential difference across any one cell is