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Chapter 32, Problem 1DQ

BuyFindarrow_forward

Sears And Zemansky's University Ph...

13th Edition
YOUNG + 1 other
ISBN: 9780321897961

Solutions

Chapter
Section
BuyFindarrow_forward

Sears And Zemansky's University Ph...

13th Edition
YOUNG + 1 other
ISBN: 9780321897961
To determine
The direction of electromagnetic wave by measuring electric and magnetic fields.

Explanation

The propagation direction of electromagnetic wave is perpendicular to vectors of electric filed and magnetic field.

Assume direction of electric filed and magnetic field can be found at a point in a space. The direction of propagation wave can be found by taking cross product of electric filed and magnetic field (E×B)

images

From figure 1, electromagnetic wave direction is perpendicular to the vectors of electric filed and the magnetic field. Therefore, direction of electromagnetic wave is opposite to direction of (E×B).

Conclusion:

Therefore, direction of electromagnetic wave is opposite to direction of (E×B).

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