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A 5V battery with internal resistance 2 Ω and a 2V battery with internal resistance 1 Ω are connected to a 10 Ω resistor as shown in the figure.
5V battery with internal resistance
The current in the 10 Ω resistor is

0.03 A P1 to P2
0.03 A P2 to P1
0.27 A P1 to P2
0.27 A P2 to P1
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