A power supply has an open-circuit voltage of 350 v and an, Ask an Expert

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A power supply has an open-circuit voltage of 35.0 V and an internal resistance of 2.00 O. It is used to charge two storage batteries connected in series, each having an emf of 7.00 V and internal resistance of 0.300 O. The charging current is to be 3.20 A.

(a) What additional resistance should be added in series? =O

(d) At what rate does the internal energy increase in the added series resistance? =W

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