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**1. Homework Statement**

I am currently trying to work on the extra credit question, the capacitance of the capacitor is 2 microfarads

**2. Homework Equations**

W = 1/2CV^2

**3. The Attempt at a Solution**

I've done the previous sections, and have gotten 4.23 * 10^-11 J as the answer for the work done on the capacitor. Now I have no idea how to proceed. From the formula W = 1/2CV^2, how can the work ever be negative? This is where I'm stuck