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Solution: A point source emits electromagnetic radiation uniformly in ...

Question

A point source emits electromagnetic radiation uniformly in all directions. If the power output of the source is 960 W, what are the amplitudes of the electric and magnetic fields in the wave at a distance of 15.0 m from the source? (The surface area of a sphere that has radius R is 4πR2, ε0 = 8.854 x 1012 C2/(N•m2). μ0 = 4π x 10-7 T•m/A.)

electric field amplitude = _______________

magnetic field amplitude = _______________