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    hey, im stuck on this question and have no idea how to solve it.

    A 15V d.c generator with an internal resistance of 2? is used to charge a 12V car battery which has an internal resistance of 1? calculate the charging current.
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    Sum of emfs = sum of Pds (kirchoff2)

    15-12 = Ix2 + Ix1
 
 
 
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