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Question

Which of the following doesn't represent energy (here symbols have their usual meanings)

A
kq1q2r
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B
12CV2
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C
qϵ, where (ϵ =E.M.F)
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D
12ϵ0E2×Area
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Solution

The correct option is D 12ϵ0E2×Area
We know that 12ϵ0E2 is energy density (i.e., E/Volume)
12ϵ0E2(Volume)=Energy
12ϵ0E2 (Area)(length)=Energy
12ϵ0E2 (Area)=Energylength

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