The rms value of the electric field of the light coming from the sun is 720 N/C . The average total energy density of the electromagnetic wa

Answers (1)

Average total Energy density, U = \varepsilon _{0}E_{rms}^{2}

U = 8.85\times 10^{-12} \times 720^{2}

U = 4.58\times 10^{-6} \; J/m^{3}

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