Two batteries of e.m.f. 4V and 8V with i...

Two batteries of e.m.f. 4V and 8V with internal resistances `1 Omega and 2 Omega` are connected in a circuit with a resistance of` 9 Omega` as shown in figure. The current and potential difference between the points A and B

3 A and 3 V

1 A and 6 V

1 A and 9 V

1 A and 12 V

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