The average intensity of sunlight reaching Earth is about 1360 W/m2. What is the rms magnetic field of a TEM wave with this intensity? The Earth’s magnetic field has a magnitude of 5 × 10-5 T. How does your answer from part (a) compare? Why don’t we feel this magnetic field?

University Physics Volume 2
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Chapter16: Electromagnetic Waves
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Problem 42P: What is the maximum electric field strength in an electromagnetic wave that has a maximum magnetic...
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  1. The average intensity of sunlight reaching Earth is about 1360 W/m2.

    1. What is the rms magnetic field of a TEM wave with this intensity?

    2. The Earth’s magnetic field has a magnitude of 5 × 10-5 T. How does your answer from part (a) compare? Why don’t we feel this magnetic field?

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