Sun February 17, 2013 By:

Sketch a schematic diagram depicting electri and magnetic fields for an electromagnetic wave propagating along+x direction. In an em wave propagating along +x direction , electric field vector is Ey = 4*10power 3 cos(3*10power8t - 1.5x )v/m What is : a. the frequency of em wave? b. magnetic field amplitude?

Expert Reply
Tue February 19, 2013
comparing the wave equation with the genral wave equation, we get the frequency to be: 3x 108 Hz
and the magnetic field amplitude can be given as: = Eo c
where c is the speed of light
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