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Here is a simple double battery circuit (three resistors, two batteries) - this can be solved by Kirchoff's Loop rules, as indicated below at the bottom of the page. The resistance values all have to be non-zero, but the voltages can range from +voltage to -voltage (and can include zero). The magnitudes (and "directions") of the currents are shown, as well as the various powers. [Notice that the Power delivered by the battery will be negative if the current is being "forced into" the battery.] |
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