A tiny source is emitting electromagnetic radiation equally in all directions. At a distance of 1.0 cm this radiation can be considered to be a plane wave over a small enough region. At a point P 1.0 cm from the source, the electric field amplitude of the wave is 3.5 V/m.
(a) What is the amplitude of the magnetic field of the wave at P? answer in T
(b) What is the average intensity of the radiation at P? answer in W/m^2
(c) What is the power with which the source emits radiation? answer in W