Answer :

We know that,

The energy stored per unit volumeenergy density) in an electric field E is given by


E=magnitude of electric field intensity

ϵ0=absolute permittivity of vacuum

As we know that,

And the electric field due to a point charge Q at a distance r is given by

Therefore, energy density by formula)

And E

Thus , the energy density in the electric field created by a point charge falls of with distance from a point charge as

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