energy density electric field

Question

Energy density in electric field is (in vacuum):

RankGuru · Accepted Answer

Energy density ($u$) is the energy stored per unit volume in a region where an electric field exists.
$u = \frac{1}{2} \epsilon_0 E^2$
- This applies to any region with an electric field, not just inside capacitors.
- Units: **Joules per cubic meter ($J/m^3$)**.

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energy density electric field

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