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Giancoli's Physics: Principles with Applications, 7th Edition
22
Electromagnetic Waves
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22-1: B Produced by Changing E
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22-2: EM Waves
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22-3: Electromagnetic Spectrum
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22-4: Measuring the Speed of Light
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22-5: Energy in EM Wave
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22-6: Radiation Pressure
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22-7: Radio, TV
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 7
Q

In an EM wave traveling west, the BB field oscillates up and down vertically and has a frequency of 90.0 kHz and an rms strength of 7.75×10−9 T7.75 \times 10^{-9} \textrm{ T}. Determine the frequency and rms strength of the electric field. What is the direction of its oscillations?

A
fE=fB=90.0f_E = f_B = 90.0 kHz, oscillating horizontally North-South, Erms=2.33 N/CE_{rms} = 2.33 \textrm{ N/C}
Giancoli 7th Edition, Chapter 22, Problem 7 solution video poster
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