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answerhappygod
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Problem 7: The electromagnetic wave from a light bulb has an electric field strength of E = 150 N/C. a) What's the strength of the magnetic field B? b) What's the energy density of the electric field ug and energy density of the magnetic field ug? c) What's the intensity of the electric field I, and the intensity of the magnetic field I? d) What's the total energy density Utotal and the total power P emitted by a spherical wave of this beam that has a radius of r = 0.05m ? a
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