`"Electric"_(ed) = 1/(8pik)|E|^2`

Enter a value for all fields

The Stored Electric Energy is found using  the following formula:  `"Stored Energy" = 1/(8pik)|E|^2` where:

• Stored Energy  = directly proportional to the square of the field strength in all cases
• π ≅ 3.14159
• k = Coulomb's constant 
• E = electric field vector

References

22.4 Calculating energy in fields by Benjamin Crowell, Light and Matter  licensed under the Creative Commons Attribution-ShareAlike license.