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The dimensions of (1)/(2)epsilon(0)E^(2)...

The dimensions of `(1)/(2)epsilon_(0)E^(2)`, where `epsilon_(0)` is permittivity of free space and E is electric field, are

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`(1)/(2)varepsilon_(0)E^(2) is the expression of energy density (Energy per unit voume )
`[(1)/(2)varepsilon_(0)E^(2)]=[(ML^(2)T^(-2))/(L^(3))]=[ML^(-1)T^(-2)]`
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