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Tuesday, December 22, 2009

How to Find Charge on Capacitors in Circuits

There are a lot of parallels (ha, ha) between resistor and capacitor circuits. For resistor circuits, we tend to re-draw the circuit as a series circuit in order to find the voltage differences across parallel sets of resistors. This allows us to then find how the current splits in any parallel sets. We do basically the same thing for capacitor circuits, where we re-draw the circuit as a series, find the voltages, and then go and find how the stored charge splits on parallel branches. Here is an example of this process.

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