FIGURE 31-2
-For an xyz coordinate system shown in Fig. 31-2, if the E-vector is in the +z direction, and the B-vector is in the +x direction, what is the direction of propagation of the electromagnetic waves?
A)+x
B)-x
C)+y
D)-y
E)+z

Question

FIGURE 31-2 
-For an xyz coordinate system shown in Fig. 31-2, if the E-vector is in the +z direction, and the B-vector is in the +x direction, what is the direction of propagation of the electromagnetic waves?
A)+x 
B)-x 
C)+y 
D)-y 
E)+z

Quizplus · Accepted Answer

The direction of propagation of an electromagnetic wave is given by the cross product of the electric field (E) and the magnetic field (B). If E is in the +z direction and B is in the +x direction, the propagation direction is E x B, which results in the +y direction.

FIGURE 31-2 -For an Xyz Coordinate System Shown in Fig. 31-2, If