Finding amplitude/magnitude...plz help ASAP Thanks.. The magnetic field in a radio wave traveling through air?

The magnetic field in a radio wave traveling through air has amplitude 1.5x10^-11 T and frequency 4.8 MHz. (a) Find the amplitude and frequency of the electric field. amplitude: answer in mV/m (b) The wave is traveling in the −y direction. At y = 0 and t = 0, the magnetic field is 1.0 10-11 T in the... show more The magnetic field in a radio wave traveling through air has amplitude 1.5x10^-11 T and frequency 4.8 MHz.
(a) Find the amplitude and frequency of the electric field.
amplitude: answer in mV/m


(b) The wave is traveling in the −y direction. At y = 0 and t = 0, the magnetic field is 1.0 10-11 T in the +z-direction. What are the magnitude and direction of the electric field at y = 0 and t = 0? magnitude: answer in mV/m
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