A group of N identical batteries of emf # and internal
Chapter , Problem 97(choose chapter or problem)
A group of N identical batteries of emf # and internal resistance r may be connected all in series (Fig. 27-80a) or all in parallel (Fig. 27-80b) and then across a resistor R. Show that both arrangements give the same current in R if R ! r. SSM + + r r R (a) + r N batteries in series + + + R (b) N batteries in parallel r r r Figure 27-80 97.
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