University Physics with Modern Physics Plus Mastering Physics with eText -- Access Card Package (14th Edition)
14th Edition
ISBN: 9780321982582
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 32, Problem 32.8DQ
To determine
The amplitude of magnetic field in a similar wave of twice the intensity.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The magnetic field of a wave propagating through a certain nonmagnetic material in the positive y direction
has an amplitude of 30 mA/m and a frequency of-
10
Hz . If the wave is polarized on the positive z direction
and its wavelength is 12.6 meter, find the equation of the instantaneous Electric field. Assume the initial phase
is 0.
Select one:
O a. E(y, t) = -2.4īcos(10°t – y) V/m
12.6
O b. E(y, t) = 2400žcos(2710°t – 12.6y) V/m
O c. E(y, t) = 2.4ricos(10*t – y) V/m
12.6
O d. E(z, t) = 2.4jcos(10°t -
z) mv/m
12.6
O e. E(y, t) = 1.6žcos(t – 2.10®ry) v/m
O f. E(y, t) = 30žcos(10°t + y) mv/m
27
12.6
Suppose you have an electric field as a result of superposition of two waves given by
Ē(z, t) = Eo cos(kz - wt) + Eo cos(kz + wt)â.
a. Simplify Ē(z, t) as one term and find its associated magnetic field
b. Find the instantaneous and time-averaged energy density.
A dish antenna having a diameter of 14.0 m receives (at normal incidence) a radio signal from a distant source as shown in the figure below. The radio signal is a continuous sinusoidal wave with
amplitude Emax = 0.400 µV/m. Assume the antenna absorbs all the radiation that falls on the dish.
(a) What is the amplitude of the magnetic field in this wave?
T
(b) What is the intensity of the radiation received by this antenna?
W/m²
(c) What is the power received by the antenna?
W
(d) What force is exerted by the radio waves on the antenna?
N
Chapter 32 Solutions
University Physics with Modern Physics Plus Mastering Physics with eText -- Access Card Package (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
Knowledge Booster
Similar questions
- The electric field of an electromagnetic wave traveling in vacuum is described by the following wave function: E =(5.00V/m)cos[kx(6.00109s1)t+0.40] j where k is the wavenumber in rad/m, x is in m, t s in Find the following quantities: (a) amplitude (b) frequency (c) wavelength (d) the direction of the travel of the wave (e) the associated magnetic field wavearrow_forwardIf the electric field of an electromagnetic wave is oscillating along the z-axis and the magnetic field is oscillating along the x-axis, in what possible direction is the wave traveling?arrow_forwardSuppose the magnetic field of an electromagnetic wave is given by B = (1.5 1010) sin (kx t) T. a. What is the maximum energy density of the magnetic field of this wave? b. What is maximum energy density of the electric field?arrow_forward
- The electric part of an electromagnetic wave is given by E(x, t) = 0.75 sin (0.30x t) V/m in SI units. a. What are the amplitudes Emax and Bmax? b. What are the angular wave number and the wavelength? c. What is the propagation velocity? d. What are the angular frequency, frequency, and period?arrow_forwardA certain 60.0-Hz ac power line radiates an electromagnetic wave having a maximum electric field strength of 13.0 kV/m. (a) What is the wavelength of this very-low-frequency electromagnetic wave? (b) What type of electromagnetic radiation is this wave (b) What is its maximum magnetic field strength?arrow_forwardA plane electromagnetic wave travels northward. At one instant, its electric field has a magnitude of 6.0 V/m and points eastward. What are the magnitude and direction of the magnetic field at this instant?arrow_forward
- Figure P24.13 shows a plane electromagnetic sinusoidal wave propagating in the x direction. Suppose the wavelength is 50.0 m and the electric field vibrates in the xy plane with an amplitude of 22.0 V/m. Calculate (a) the frequency of the wave and (b) the magnetic field B when the electric field has its maximum value in the negative y direction. (c) Write an expression for B with the correct unit vector, with numerical values for Bmax, k, and , and with its magnitude in the form B=Bmaxcos(kxt) Figure P24.13 Problems 13 and 64.arrow_forwardA sinusoidal electromagnetic wave is propagating in vacuum in the +y direction. If the magnetic field is in the -z direction and has a magnitude of 2.50 nT at some instant in time and at a certain location in space, what is the magnitude and direction of the electric field at this same instant in time and location in space? O A. 0.750 V/m, in the +x direction O B. 0.750 V/m, in the -x direction O C. 750 V/m, in the +x direction O D. 0.750 V/m, in the -x directionarrow_forwardA closed loop of wire of radius R = 0.2 m is in the presence of a uniform magnetic field. The magnitude of the magnetic field is changing according to the following equation: B = (8mT) (1 - e) What is the magnitude the induced electric field (in µV/m) at t = 2 s? B X 0arrow_forward
- Problem 8: The magnetic field of an electromagnetic wave is described by B, = Bocos(kx - ot), where Bo = 2.5 x 10-6 T and o = 6.5 x 10' rad/s. Randomized Variables Bo = 2.5 x 10-6 T w = 6.5 x 107 rad's Part (a) What is the amplitude of the corresponding electric field oscillations, Eg, in terms of Bo? E, = 7 8. 9 HOME Во 4 5 6. d 2 3 h i + END P vol BACKSPACE DEL CLEAR m t Submit I give up! Hint Feedback Part (b) Calculate the electric field En in volts per meter. Part (c) What is the frequency of the electromagnetic wave, f, in terms of w? f- co( 2 n) v Part (d) What is the wavelength of the electromagnetic wave, 1, in terms of w and the speed of light c? i = c/( o/( 2 n)) v Part (e) Calculate the wavelength i in meters.arrow_forwardA sinusoidal electromagnetic wave with frequency 4.00 x 1012 Hz is traveling in the air. The intensity of the wave is 5.00 W/m2. What is the amplitude of the magnetic field for the wave?arrow_forwardA sinusoidal electromagnetic wave propagates in the +x direction through empty space. Its electric field is described by E = (2.02E4 V/m) × sin ((2.06E11 rad/s) t – (687 rad/m) x ) . What is the magnetic field amplitude of this electromagnetic wave (in T)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning