Answered: 2.4 Show that the average Poynting flux… | bartleby

Related questions

Question

2.4 Show that the average Poynting flux is given by the expression
Re (Eo x H), where E. and Ho are the complex field ampli-
tudes of a light wave.

Expert Solution

Step by step

Solved in 1 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

A polariser made of Polaroid polymer has an intensity transmittance of 90 percent for light polarised parallel to the peak-transmission axis, and 0.5 percent for light polarised perpendicular to that axis. In each case below, unpolarised light of intensity 10 W m−2−2 is incident on the first polariser. Usisng drag-and-drop, match up the results for the intensity in W m−2 transmitted after the last polariser. Two such polarisers oriented parallel to each other Two such polarisers oriented at 0 and 90 degrees Three such polarisers oriented at 0, 45 and 90 degrees. note: If possible could an explanation be provided with the answers? I am largely concerned with the understanding so i can reproduce the answers for similar questions.
V4
A nonsinusoidal electromagnetic wave has uniform electric and magnetic fields. The magnitude ofthe Poynting vector for this wave is 11.0 W>m2. Find (a) the magnitudesof the electric and magnetic fields and (b) the energy density in the wave.
RF Electromagnetics: . If an x-component of the E-field varies as a sine function, and y-field component varies as a cosine function; assuming that the Ex=0.7Ey, what is the polarization of the resultant wave whichpropagates in the positive z-direction. For frequency f, write the full expression for the electricfield of a plane wave propagating in vacuum.
Let E=(-2jŷ) e˜³², H =- (2 jî +ŷ) e¯jz 377 (a) Find the time-averaged Poynting's vector . (b) Find the instantaneous Poynting's vector (z,t). (c) Show that the results from (a) and (b) are consistent.
= The electric fields of two harmonic waves of angular frequency w, and we are given by E₁ E₁,0cos (k₁y + w₁t)i and E2 = E2,0cos (k₁y-w₂t)î. Find (a) the instantaneous Poynting vector for the resultant wave motion and (b) the time-average Poynting vector. If the direction of propagation of the second wave is reversed, find (c) the instantaneous Poynting vector for the resultant wave motion and (d) the time -average Poynting vector.