The electric field of an electromagnetic wave is \(\vec{E}=\hat{i} \sqrt{2} \sin(kz-\omega t) \) V/m. The average flow of energy per unit area per unit time, due to this wave is;
1
\(27 \times 10^{4} W/m^2 \)
2
\(27 \times 10^{-4} W/m^2 \)
3
\(27 \times 10^{2} W/m^2 \)
4
\(27 \times 10^{-2} W/m^2 \)