Electric charges can be associated with electric fields, magnetic fields and electromagnetic waves (electric and magnetic fields coupled together). Match the charge particle state to the associated field form. Electromagnetic waves. 1. Any charge (static or moving). 2. Moving charge (constant or changing velocity). Electric fields Magnetic fields. 3. Accelerating charge. > >

Electric charges can be associated with electric fields, magnetic fields and electromagnetic waves (electric and magnetic fields coupled together). Match the charge particle state to the associated field form. Electromagnetic waves. 1. Any charge (static or moving). 2. Moving charge (constant or changing velocity). Electric fields Magnetic fields. 3. Accelerating charge. > >

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter34: Electromagnetic Waves

Section: Chapter Questions

Problem 34.5OQ

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Similar questions

How does the intensity of an electromagnetic wave depend on its electric field? How does it depend on its magnetic field?
Integrated Concepts Electromagnetic radiation from a 5.00-mw laser is concentrated on a 1.00m2 area. (a) What is the intensity in W/m2? (b) Suppose a 2.00nC static charge is in the beam. What is me maximum electric force it experience? (c) If the static charge moves at 400 m/s, what maximum magnetic force can it feel?
Check Your Understanding What conclusions did our analysis of Maxwell's equations lead to about these properties of a plane electromagnetic wave: (a) the relative directions of wave propagation, of the E field, and of B field, (b) the speed of travel of the wave and how the speed depends on frequency, and (c) the relative magnitudes of the E and B fields.
Electromagnetic braking can be achieved by applying a strong magnetic field to a pinning metal disk attached to a shaft. (a) How can a magnetic field slow the spinning of a disk? (b) Would the brakes work if the disk was made of plastic instead of metal?
Create Your Own Problem Consider electromagnetic fields produced by high voltage power lines. Construct a problem in which you calculate the intensity of this electromagnetic radiation in W/m2 based on the measured magnetic field strength of the radiation in a home near the power lines. Assume these magnetic field strengths are known to average less than a T. The intensity is small enough that it is difficult to imagine mechanisms for biological damage due to it. Discuss how much energy may be radiating from a section of power line several hundred meters long and compare this to the power likely to he carried by the lines. An idea of how much power this is can be obtained by calculating the approximate current responsible for T fields at distances of tens of meters.
An electron in a TV CRT moves with a speed at 6.00107m/s, in a direction perpendicular to the Earth’s field, which has a strength of 5.00105T. (a) What strength electric field must be applied perpendicular to the Earth’s field to make the election moves in a straight line? (b) If this is done between plates separated by 1.00 cm, what is the voltage applied? (Note that TVs are usually surrounded by a ferromagnetic material to shield against external magnetic fields and avoid the need for such a correction.)
. If the electric field in an electromagnetic field is doubled, by what factor does themagnetic field change? Explain
What kind of polarization has a plane electromagnetic waveif the projections of the vectorE on the x and y axes are perpendicular to the propagation direction and are determined by the followingequations: Ex= E cos(wt − kz), Ey= E cos(wt − kz+ pi/4).
What is the relationship between the E- and B-field strengths in an electromagnetic wave?