# 25.&nbsp; Which one of the following field pat...

25.  Which one of the following field patterns represents a TEM wave travelling in the positive x direction?

(A) $E=+8\widehat y, H=-4\widehat z$

(B) $E=-2\widehat y, H=-3\widehat z$

(C) $E+2\widehat z, H=+2\widehat y$

(D) $E=-3\widehat y, H=+4\widehat z$

Hint: