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Energy density in the electric field of ...

Energy density in the electric field of electromagnetic wave is U.If amplitude of electric field `(E_0)` and magnetic field `(B_0)` is related as `E_0 = c B_0`, then energy density in magnetic field is(c = speed of light)

A

`U/c`

B

`U/c²`

C

U

D

`c^2U`

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