Energy Density

• Example (and another exercise for the student!)

  • Consider E field between surfaces of cylindrical capacitor:
  • Calculate the energy in the field of the capacitor by integrating the above energy density over the volume of the space between cylinders.

http://wug.physics.uiuc.edu/courses/phys112/fall97/acts/lect08/act08b/sld001.htm

• Compare this value with what you expect from the general expression:

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