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Physics: Principles and ProblemsChapter 23:
Series and Parallel CircuitsProblem of the Week![](/sites/dl/free/0098458137/193800/ch23_title.gif) (1.0K) | ![](/sites/dl/free/0098458137/193800/POWsolutions.gif) (0.0K) | ![](/sites/dl/free/0098458137/193800/POWproblem1.gif) (0.0K) | A
D-cell is a 1.5 V battery. A flashlight uses two D-cells connected
in series for a total potential difference of 3 V. Because each
biobattery is 0.5 V, connecting 6 of them in series will produce
the right voltage. | | ![](/sites/dl/free/0098458137/193800/ch23_battery1.gif) (0.0K) | | ![](/sites/dl/free/0098458137/193800/POWproblem2.gif) (0.0K) | In
the text it states that a biobattery has 1/5 W of power. With
a voltage of 0.5 V, the current generated is 2/5 A. To achieve
1 A of current, you'll need at least five biobatteries connected
in parallel. To obtain 1 volt, each parallel segment must contain
two 0.5 V biobatteries connected in series. | | ![](/sites/dl/free/0098458137/193800/ch23_battery2.gif) (1.0K) | | ![](/sites/dl/free/0098458137/193800/gutter.gif) (0.0K) | ![](/sites/dl/free/0098458137/193800/gutter.gif) (0.0K) | ![](/sites/dl/free/0098458137/193800/gutter.gif) (0.0K) | ![](/sites/dl/free/0098458137/193800/gutter.gif) (0.0K) | ![](/sites/dl/free/0098458137/193800/gutter.gif) (0.0K) |
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