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Two cells are connected between points `A` and `B` as shown.Cell `1` has emf of `12V` and internal resistance of `3Omega`.Cell `2` has emf of `6Omega`.An external resistor `R` of `4Omega` is connected across `A` and `B`.The current flowing through R will be across `A` and `B`.The current flowing through R will be__A.

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