The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 2.0 × 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.19 m². How much energy does this wave carry through the window during a 60-s phone call?

The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 2.0 × 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.19 m². How much energy does this wave carry through the window during a 60-s phone call?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 22PQ

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Question

The electromagnetic wave that delivers a cellular
phone call to a car has a magnetic field with an rms
value of 2.0 × 10-10 T. The wave passes
perpendicularly through an open window, the area
of which is 0.19 m². How much energy does this
wave carry through the window during a 60-s phone
call?
Number
i
Units
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