University Physics with Modern Physics (14th Edition)
14th Edition
ISBN: 9780321973610
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Chapter 32.4, Problem 32.4TYU
Figure 32.13 shows one wavelength of a sinusoidal
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The magnetic field in a plane monochromatic electromagnetic wave with wavelength λ = 683 nm, propagating in a
vacuum in the z-direction is described by
B = (B₁ sin(kz – wt)) (î+ ĵ)
where B₁ = 5.3 X 10-6 T, and i-hat and j-hat are the unit vectors in the +x and +y directions, respectively.
1) What is k, the wavenumber of this wave?
0
2) What is Zmax, the distance along the positive z-axis to the position where the magnitude of the magnetic field is a
maximum at t = 0?
0
m¹ Submit
0
3) What is Emax, the amplitude of the electric field oscillations?
nm Submit
0
V/m Submit
4) What is Ey, the y-component of the electric field at (x = 0, y-0, z = Zmax) at t = 0?
V/m Submit
+
+
A point source emits monochromatic electromagnetic waves into air uniformly in all directions.At a distance of 5 m away from the source you detect the wave with an electric field amplitude of 20 V/m.
Determine the amplitude of the electric field (in V/m) at a distance 40 m.
Problem 4:
An electromagnetic wave, propagating in a wave guide, is given as follows:
E = E, cos (ot + Bx) ax + Eo sin (@t + Bx) (a,)V/m
H= H, cos(@t + ßx) (a: ) A/m
a. The medium in the waveguide is filled with a lossless material having (&, =4 and u=1), the
frequency is f= 3 GHz, and its phase constant is ß = 37 (rad/m). Determine the mode of wave.
b. Find the cutoff frequency, wave impedance, and phase velocity of the wave.
c. Calculate the time-averaged power density in the structure.
d. Calculate the magnitude of the electric and magnetic field intensities Eo and Ho if the time-
averaged power density is uniform in the structure and equals 80 W/m².
Chapter 32 Solutions
University Physics with Modern Physics (14th Edition)
Ch. 32.1 - (a) Is it possible to have a purely electric wave...Ch. 32.2 - Prob. 32.2TYUCh. 32.3 - The first of Eqs. (32.17) gives the electric field...Ch. 32.4 - Figure 32.13 shows one wavelength of a sinusoidal...Ch. 32.5 - Prob. 32.5TYUCh. 32 - By measuring the electric and magnetic fields at a...Ch. 32 - When driving on the upper level of the Bay Bridge,...Ch. 32 - Give several examples of electromagnetic waves...Ch. 32 - Sometimes neon signs located near a powerful radio...Ch. 32 - Is polarization a property of all electromagnetic...
Ch. 32 - Prob. 32.6DQCh. 32 - Prob. 32.7DQCh. 32 - Prob. 32.8DQCh. 32 - Prob. 32.9DQCh. 32 - Most automobiles have vertical antennas for...Ch. 32 - Prob. 32.11DQCh. 32 - Prob. 32.12DQCh. 32 - Does an electromagnetic standing wave have energy?...Ch. 32 - (a) How much time does it take light to travel...Ch. 32 - Consider each of the electric- and magnetic-field...Ch. 32 - Prob. 32.3ECh. 32 - Consider each of the following electric- and...Ch. 32 - BIO Medical X rays. Medical x rays are taken with...Ch. 32 - BIO Ultraviolet Radiation. There are two...Ch. 32 - Prob. 32.7ECh. 32 - Prob. 32.8ECh. 32 - Prob. 32.9ECh. 32 - Prob. 32.10ECh. 32 - Prob. 32.11ECh. 32 - Prob. 32.12ECh. 32 - Prob. 32.13ECh. 32 - An electromagnetic wave with frequency 65.0 Hz...Ch. 32 - Prob. 32.15ECh. 32 - BIO High-Energy Cancer Treatment. Scientists are...Ch. 32 - Prob. 32.17ECh. 32 - A sinusoidal electromagnetic wave from a radio...Ch. 32 - A space probe 2.0 1010 m from a star measures the...Ch. 32 - The energy flow to the earth from sunlight is...Ch. 32 - The intensity of a cylindrical laser beam is 0.800...Ch. 32 - A sinusoidal electromagnetic wave emitted by a...Ch. 32 - Prob. 32.23ECh. 32 - Television Broadcasting. Public television station...Ch. 32 - An intense light source radiates uniformly in all...Ch. 32 - In the 25-ft Space Simulator facility at NASAs Jet...Ch. 32 - BIO Laser Safety. If the eye receives an average...Ch. 32 - A laser beam has diameter 1.20 mm. What is the...Ch. 32 - Laboratory Lasers. He-Ne lasers are often used in...Ch. 32 - Prob. 32.30ECh. 32 - Microwave Oven. The microwaves in a certain...Ch. 32 - Prob. 32.32ECh. 32 - Prob. 32.33PCh. 32 - Prob. 32.34PCh. 32 - Prob. 32.35PCh. 32 - Prob. 32.36PCh. 32 - The sun emits energy in the form of...Ch. 32 - Prob. 32.38PCh. 32 - CP Two square reflectors, each 1.50 cm on a side...Ch. 32 - A source of sinusoidal electromagnetic waves...Ch. 32 - Prob. 32.41PCh. 32 - CP A circular wire loop has a radius of 7.50 cm. A...Ch. 32 - Prob. 32.43PCh. 32 - Prob. 32.44PCh. 32 - CP Global Positioning System (GPS). The GPS...Ch. 32 - Prob. 32.46PCh. 32 - CP Interplanetary space contains many small...Ch. 32 - Prob. 32.48PCh. 32 - DATA Because the speed of light in vacuum (or air)...Ch. 32 - DATA As a physics lab instructor, you conduct an...Ch. 32 - Prob. 32.51CPCh. 32 - Prob. 32.52CPCh. 32 - Prob. 32.53CPCh. 32 - BIO SAFE EXPOSURE TO ELECTROMAGNETIC WAVES. There...Ch. 32 - BIO SAFE EXPOSURE TO ELECTROMAGNETIC WAVES. There...Ch. 32 - Prob. 32.56PP
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