Each of the six real batteries in Fig. 27-68 has an emf of

Chapter , Problem 70

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Each of the six real batteries in Fig. 27-68 has an emf of 20 V and a resistance of 4.0 . (a) What is the current through the (external) resistance R 4.0 ? (b) What is the potential difference across each battery? (c) What is the power of each battery? (d) At what rate does each battery transfer energy to internal thermal energy?R Figure 27-68 70.

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