a. Write down an E(z,t) and a B(z,t) travelling wave of an EM wave in terms of k and w. What are these constants and the speed of the wave in terms of the wavelength A and the frequency f of the wave? b. What are the energy densities stored in an electric and a magnetic field? c. What is the total instantaneous energy stored per unit volume in a region of space where there is an EM wave? Seeing that that e = express this in terms of the B- field.

a. Write down an E(z,t) and a B(z,t) travelling wave of an EM wave in terms of k and w. What are these constants and the speed of the wave in terms of the wavelength A and the frequency f of the wave? b. What are the energy densities stored in an electric and a magnetic field? c. What is the total instantaneous energy stored per unit volume in a region of space where there is an EM wave? Seeing that that e = express this in terms of the B- field.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 46P: A plane electromagnetic wave of frequency 20 GHz moves in the positive y-axis direction such that...

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