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Physics, 29.11.2020 14:50 michelle8978

The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.724 W/m^2. What is the maximum value of the magnetic field in the wave? a. 77.9 nT
b. 55.1 nT
c. 38.9 nT
d. 108 nT

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