A plane electromagnetic wave traveling in the positive directionof an x axis in vacuum has components Ex =Ey =0 and Ez=(2V/m)cos(3.14∗10^−15s^−1(t− x/c)). (a) What is the amplitude ofthe magnetic field component? (b) Parallel to which axis does themagnetic field oscillate? (c) When the electric field component isin the positive direction of the z axis at a certain point P, whatis the direction of the magnetic field component there?
