The E field in an EM wave has a peak of 22.8 mV/m. What is the average rate at which this wave carries energy across unit area per unit time?
S = e_0*c*E^2
The Attempt at a Solution
where e_0 = 8.85*10^-12
c = 3*10^8
E = 0.0228 V/m
S = (8.85E-12)*(3*10^8)*(0.0228)^2 = 1.38017E-6 W/m^2
I trying finding the Poynting vector S using the equation e_0*c*E^2 as I have all the needed values. This produces an answer of 1.380E-6 W/m^2 which was incorrect. Where did I go wrong?