# HW#9 - E = 35e − 5z sin(4 π x10 6 t − 0.12z a x V m A...

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ECE 311 Homework #9 Not to be turned in Problem 1: The following is the equation of the electric field intensity of an EM wave in free space. E = 35cos(9.42x10 6 t + 3.14x10 2 y) a z V m A) What is the wavelength of the wave? B) What is the frequency of the wave? C) What is the velocity of the wave? D) What is the magnetic field intensity of the wave? E) What is the time-average power carried by the wave? F) What is the power crossing a 1 m 2 plane that is perpendicular to a y ? Problem 2: The following is the equation of the electric field intensity of an EM wave.
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Unformatted text preview: E = 35e − 5z sin (4 π x10 6 t − 0.12z) a x V m A) What is attenuation constant of the wave? B) What is the skin depth? C) What is the wave number? D) What is the wavelength? E) What is the velocity of the wave? F) If the relative permeability is one, what is the magnetic field intensity of the wave? Problem 3: A uniform plane wave in a lossy medium has a phase constant of 1.6 rad/m at 107 Hz, and its magnitude is reduced by 60% for every 2 m traveled. Find the skin depth and speed of the wave....
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