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Physics — Battery Energy Delivery

Internal resistance wastes some stored energy.

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Battery delivering energyChemical energy stored100Useful electrical output85Internal resistance heat15Conserved — 100 in, 100 out, across 3 nodes and 2 flows. The widths add up.3 nodes named only by a flow — `Chemical energy stored`, `Useful electrical output`, `Internal resistance heat`. They are drawn under the bare id with no labe…Conserved: 100 enters at `Chemical energy stored` and 100 leaves at `Useful electrical output`, `Internal resistance heat`, and every one of the 0 nodes betwe…

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title "Battery delivering energy"
flow "Chemical energy stored" "Useful electrical output" 85
flow "Chemical energy stored" "Internal resistance heat" 15