From a local TV station transmitter, a sinusoidal, plane electromagnetic wave is normally incident on an open window that has an area of 0.510m2. The wave travels to the right in the positive x-direction at the speed of light c and the window is thus perpendicular to the x-axis. See the schematic. Suppose the three electric field components have wave functions: EX = 0 EY = Emsin(kx-ωt) EZ = 0 See the axes below. At the moment shown the electric field - indicated by the vertically upward arrow - points in the positive y direction. Assume the field magnitude Em = 0.01000 V/m. The Erms (root mean square) of the electric field would thus be Erms = 0.00707 V/m. (a) At the moment shown above, in what direction does the magnetic field point? Indicate this direction by drawing a symbol near the z-axis. (b) Compute the numerical value of amplitude Bm of the magnetic field component pointing in the direction you found.
From a local TV station transmitter, a sinusoidal, plane
Suppose the three electric field components have wave functions:
EX = 0
EY = Emsin(kx-ωt)
EZ = 0
See the axes below. At the moment shown the electric field - indicated by the vertically upward arrow - points in the positive y direction. Assume the field magnitude Em = 0.01000 V/m. The Erms (root mean square) of the electric field would thus be Erms = 0.00707 V/m.
(a) At the moment shown above, in what direction does the magnetic field point? Indicate this direction by drawing a symbol near the z-axis.
(b) Compute the numerical value of amplitude Bm of the magnetic field component pointing in the direction you found.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
