Physics 2 Quiz
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A battery charger with output EMF Ec=14 V\mathcal{E}_c = 14 \text{ V} and internal resistance rc=0.5 Ωr_c = 0.5 \, \Omega is used to charge a car battery with EMF Eb=12 V\mathcal{E}_b = 12 \text{ V} and internal resistance rb=0.3 Ωr_b = 0.3 \, \Omega. The charger and battery are connected directly (no additional external resistance).
What is the charging current, and what is the terminal voltage measured across the car battery's terminals during charging?
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