FUNDAMENTALS OF PHYSICS - EXTENDED
FUNDAMENTALS OF PHYSICS - EXTENDED
12th Edition
ISBN: 9781119773511
Author: Halliday
Publisher: WILEY
Question
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Chapter 33, Problem 1Q
To determine

To find:

a) The direction of the wave travel.

b) The direction of oscillation of the electric field.

Expert Solution & Answer
Check Mark

Answer to Problem 1Q

Solution:

a) The direction of wave travel is along the positive direction of the z axis.

b) The direction of oscillation of electric field is along x axis.

Explanation of Solution

1) Concept:

Analyzing the given equation, we can find the direction of the electromagnetic wave and the direction of the electric field component.

2) Given:

The equation of the magnetic field oscillating parallel to y axis is

By=Bm sin(kz-ωt)

3) Calculations:

a) From the given equation, the term ‘kz’ denotes that the wave is travelling along z direction. And the sign indicates that the wave is travelling along the positive z axis.

b) As the magnetic field is oscillating parallel to y axis and the wave is traveling along z direction. The electric field must oscillate parallel to x-axis, perpendicular to both, the direction of the propagation of wave and the magnetic field.

Conclusion:

Using the information of the given equation, we can indicate the direction of the wave and its electric and the magnetic field components.

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Chapter 33 Solutions

FUNDAMENTALS OF PHYSICS - EXTENDED

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