Two cells `A` and `B` each of 2 V are connected in series to an external resistance `R=1` ohm.The internal resistance of A is `r_(A)=1.9` ohm and B is `r_(B)=0.9` ohm. Find the potential difference between the terminals of `A`.

Two batteries A and B each of e.m.f. 2 V are connected in series to an external resistance R = 1 ohm . If the internal resistance of battery A is 1.9 ohms and that of B is 0.9 ohm , what is the potential difference between the terminals of battery A

Two batteries A and B each of e.m.f. 2 V are connected in series to an external resistance R = 1 ohm . If the internal resistance of battery A is 1.9 ohms and that of B is 0.9 ohm , what is the potential difference between the terminals of battery A

Two batteries A and B each of e.m.f. 2V are connected in series to an external resistance R = 1 Omega . If the internal resistance of battery A is 1.9 Omega and that of B is 0.9 Omega . What is the potential difference between the terminals of battery A ?

Two batteries A and B whose emf is 2V are connected in series with external resistance R=1Omega . Internal resistance of battery A is 1.9Omega and that of B is 0.9 Omega .

Two cells A and B ofe.m.f. 2V and 1.5V respectively, are connected as shown in figure through an external resistance 10 ohm. The internal resistance of each cell is 5 ohm. The potential difference E_(A) and E_(B) across the terminals of the cells A and B respectively are

Four cells each of emf 2V and internal resistance 1 ohm are connected in parallel with an external resistance of 6 ohm. The current in the external resistance is

Four cell each of emf 2 V and internal resistance 1 ohm are connected n parallel with an external resistance of 6 ohm. The current in the external resistance is

Two cells with the same emf E and different internal resistances r_(1) and r_(2) are connected in series to an external resistances R . The value of R so that the potential difference across the first cell be zero is

Two cells, whose e.m.f.'s are same are connected in series. Their internal resistance are r_1 and r_2 respectively and r_1gtr_2 . When this combination is connected with an external resistance R then potential difference between the terminals of first cell becomes zero. The value of resistance R will be