A plane electromagnetic wave traveling in the positive direction of an x axis in vacuum has components Ex = Ey = 0 andEz = (4.0 V/m) cos[(7 × 1015 s1)(t - x/c)].(a) What is the amplitude of the magnetic field component? (b) Parallel to which axisdoes the magnetic field oscillate? (c) When the electric field component is in the positive direction of the z axis at a certain point P,what is the direction of the magnetic field component there? Assume that the speed of light is 2.998*108 m/s.%3D(a) NumberUnits(b)(c)Use correct number of significant digits; the tolerance is +/-1 in the 3rd significant digit

(a) Amplitude of magnetic field component is, B0=E0c=4.0 V/m2.998×108 m/s=1.3×10-8 T(b) Wave oscillates along z direction. Direction of propagation is along +x direction. Therefore, Bx=Bz=0 Hence, magnetic field oscillates parallel to +y axis. (c) Direction of EM wave propagation is along the vector product of E and B. E is along z direction and direction of propagation is along x direction. For this to be possible, magnetic field must be along -y direction.

Answered: A plane electromagnetic wave traveling…