$E_{rms} = 6.25 \times 10^{-4} \textrm{ V/m}$, $I_{avg} = 1.04 \times 10^{-9} \textrm{ W/m}^2$ Giancoli 6th Edition, Chapter 22, Problem 36(1:38) Chapter 22, Problem 36 is solved. Start My Free Week View sample solution