A cell E1 of emf 6V and internal resista...

A cell `E_1` of emf 6V and internal resistance 2`Omega` is connected with another cell `E_2` of emf 4V and internal resistance 8`Omega` (as shown in the figure). The potential difference across points X and Y is :

10.0 V

3.6 V

5.6V

2.0 V

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