Calculating Optimal Capacitor Charge for Energy Storage

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Homework Statement



To what potential should you charge a 1.0 micro(u)F capacitor to store 1.0 J of energy?


Homework Equations


Uc = 1/2C (Vc)squared



The Attempt at a Solution



1/2 CV^2 so V=SQR(2E/C)=SQR(2/1E^-6)=.004 V

This isn't right though. Any help??
 
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It seems you have taken the wrong square root...sqrt(2/1E-6) is definitely NOT .004.

2/1E-6 = 2E6 so the sqrt(2E6) is...?
 

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