Question

Suppose that the electric field part of an electromagnetic wave in vacuum is E={(3.1 N/C) cos [(1.8 rad/m)y+{5.4`xx10^(6)` rad/s} t]} i.
Write an expression for the magnetic field part of the wave .

Answer 1

`B=B_(0)cos(ky+omegat)hatk=(10.3nT) cos[(1.8 "rad"//m//y+(5.4xx10^(8) "rad "//s)t] hatk`