0.5*((4*pi*(8.854e-12 F/m)*(100 m)*(200 m))/(100 m))*(10e6 V*100)^2

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.