A powerful AM radio station has a radiated power of 100,000 W. Suppose this energy is emitted

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A powerful AM radio station has a radiated power of 100,000 W. Suppose this energy is emitted into a region shaped like a half-sphere (Fig. P23.49). If you are a distance of 100 km from the station, what is the electric field amplitude there? 


Wave fronts Antenna Figure P23.49

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