Question

An EM wave of frequency 50 MHz travels in vacuum along the positive X-axis and vectors E at a particular point, x and at a particular instant of time t is 9.6 j V/m. Find the magnitude and direction of B at this point x and at instant of time t.

Answer 1

Given: \(\overrightarrow{E}\) = 9.6 j V/m

i. e., Electric field E is directed along +Y axis Magnitude of \(\overrightarrow{B}.\)

As the wave propagates along +X axis and E is along +Y axis, direction of B will be along +Z-axis i.e. B = 3.2 × 10^-8 \(\hat{K}\)T.