Created by StemPy LabA cell of and is joined in parallel with a cell of and . What is the emf of the pair?
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← A hobbyist wires two batteries back to front against each other. One is 7.0 V with 0.78 Ω inside, and the other is 2.0 V with 0.22 Ω inside. A lamp of 4.0 Ω is in the loop. How large is the current?A radio power pack has 42 identical cells. They are fitted as 6 parallel strings, each string having 7 cells end to end. One cell has an internal resistance of 0.95 Ω. Find the internal resistance of the whole pack. →
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