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Two identical batteries of emf and internal resistance r are to be connected to an external resistance R, either in parallel (see Figure (a)) or
Two identical batteries of emf and internal resistance r are to be connected to an external resistance R, either in parallel (see Figure (a)) or in series (see Figure (b)). NOTE: Express your answers in terms of the given variables. (a) What is the current through the external resistance in the parallel arrangement? I,= (b) What is the current through the external resistance in the series arrangement? I; =
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