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Tuesday, December 22, 2009

How to Solve a Discharging RC Circuit

Here is an example of how to find and solve the differential equation for a discharging capacitor, as part of an RC circuit. This happens when the battery is disconnected from the charged capacitor...there is nothing left to hold the charge on the capacitor. It uses the stored energy to discharge, and that energy gets burned off by the resistance in the circuit as the charge and current die off exponentially.

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