A Plane electromagnetic wave of frequency 50 MHz travels in free space along the positive x direction. At a particular point in space and time, vector E = 6.3jV/m.The corresponding magnetic field vector B, at that point will be:
(1) 18.9 x 10-8 KT
(2) 6.3 x 10-8 KT
(3) 2.1 x 10-8 KT
(4) 18,9 x 108 KT