Answered: The electric fields of two harmonic… | bartleby

Related questions

Question

=
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.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 7 steps with 7 images

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

At an instant in time, the electric and magnetic fields of an electromagnetic wave are given by É = -3.81 × 103k V/m and B = -1.27 x 10¬1'i T. Find the Poynting vector for this wave. (Express your answer in vector form.) S = W/m?
Two electromagnetic waves are represented by the following expressions: E = Ae(k=-wt) En Ē2 = Ae"(kz-wt+a), where both A and a are real. (a) For each wave, determine its polarization state. Calculate the time-average Poyning (s). vector Consider the superposition of the two waves E3 = E1 + E2. (b) Calculate the time-average Poyning vector (5.). (c) For what value(s) of a will E, be a circularly polarized wave?
What is the average magnitude of the Poynting vector 3.60 mi from a radio transmitter broadcasting isotropically (equally in all directions) with an average power of 241 kW?
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.
A beam of intensity I reflects from a long, totally reflecting cylinder of radius R; the beam is perpendicular to the central axis of the cylinder and has a diameter larger than 2R.What is the beam’s force per unit length on the cylinder?
What is the maximum value (in units of N/C) of the electric field Emax in an electromagnetic wave propagating in vacuum whose average intensity is I = 4 %3D W/m2?
There is a vector defined by John Henry Poynting in 1884 whose direction gives the direction that an electromagnetic wave transmits its field energy and whose magnitude is the rate at which energy is being transmitted per square meter of the wavefront. For mutually perpendicular E- and B-fields in the wave, the magnitude of the Poynting vector is S =EB/mu0 and the direction is given by a right-hand rule, curling fingers from E vector and B vector. a) Carefully analyze the units of the Poynting vector and show that they are indeed watts per square meter. b) Find the intensity of the light in a beam of light whose electric field strength is 360 N/C and whose magnetic field is 1.2 muT.
A certain guided wave travels through air with the following magnetic field H=10+ y cos(157x) sin[(67×10° rad/s)t - Bz] [A/m] (0.3) Find the associated and B. There are a couple ways to solve this problem. Note: this is NOT a plane wave, and be sure to understand why. Nevertheless it IS a valid solution of Maxwell's equations. You will see how guided waves like this come about

Expert Answers to Latest Homework Questions

Q: ABF's metal spare parts manufacturing company uses the customised production method by attributing…

Q: Consider the following decomposition reaction of N2O5(g): For the reaction 2 N2O5(g) → 4 NO2(g) +…

Q: The reaction for obtaining NO2 from NO and O2 has the rate equation: v = k[NO]2[O2]. Indicate which…

Q: Given the equilibrium A2 + B2 ⇌ 2 AB where k1 is the rate coefficient of the forward reaction and…

Q: For the reaction 2 N2O5(g) → 4 NO2(g) + O2(g), the following mechanism has been proposed: N2O5 →>…

Q: For a complex reaction with the rate equation v = k1[A] + k2[A]2, we can say(A) that it is of order…

Q: NH3 decomposes through an equilibrium reaction between NH3, H2, and N2. Only one of the options is…

Q: k₁ Given the reaction R₂ R + R, indicate k-1 (A). the rate law with respect to R2: (B). the rate law…

Q: You're analysing Stratos Inc. for a potential investment. For the upcoming year, an analyst has…

Q: A 2-step reaction has the following mechanism: | 1. (fast) R2 R+R 2. (slow) R+Q K₂ P k_1 What series…

Q: Johnny brought $39.50 to the art supply store. He bought a brush, a sketchbook, and a paint set. The…

Q: Suppose a reaction has the following mechanism:A + B → C + D C + C → F F + B → A…

Q: What is the purpose of primary and secondary data in research

Q: Given the reaction R+ Q → P, indicate (A). the rate law with respect to P: (B). the rate law with…

Q: What monthly compounded interest rate would Second National Bank need to pay on savings deposits to…

Q: In a reaction of A + B to give C, another compound other than A, B or C may appear in the kinetic…

Q: AKB KC KD If the rate-determining step is the second step (B = C), indicate the acceptable option.…

Q: RK Co. sells snowboards. Each snowboard requires direct materials for $140, direct labor for $55,…

Q: At the start of the year, Jasper Inc. had total assets of $300,000 and total liabilities of…

Q: Sunrise Granola Co. sells its granola packs for $50 per case. Variable costs are $35 per case, and…

Q: Calculate ending inventory general accounting question