Physics
11th Edition
ISBN: 9781119326342
Author: CUTNELL
Publisher: WILEY
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Question
Chapter 24, Problem 1FC
To determine
To choose: The correct option from the given options.
Expert Solution & Answer
Answer to Problem 1FC
The correct option is “(b) The wave travels along the z axis, and its electric field oscillates along the x axis”.
Explanation of Solution
Given data:
Refer to the Figure at the bottom of the question for the required data.
The drawing in the figure shows an x, y, z coordinate system. A circular loop of wire lies in the z, x plane. The circular loop detects an
The loop can detect the electromagnetic wave only when the magnetic field of electromagnetic wave has a component perpendicular to the circular loop’s plane.
As the circular loop of wire lies in the zx-plane, the magnetic field component of the wave is along the y-axis.
The directions of electric and magnetic fields of the wave are usually perpendicular to each other, and the travelling direction of the wave is perpendicular to both the electric and magnetic field directions of wave.
As the magnetic field of the wave is along the y-axis, the direction of the electric filed of the wave is along the z-axis, and the travelling direction of the wave is along the x-axis.
Therefore, from the given options, the option (b) is an adequate option.
Conclusion:
Thus, the correct option is “(b) The wave travels along the z axis, and its electric field oscillates along the x axis”.
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Chapter 24 Solutions
Physics
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