Question

The maximum magnetic field strength of an electromagnetic field is 5×10⁻⁶T. Calculate the maximum electric field strength if the wave is traveling in a medium in which the speed of the wave is 0.75c

Answer 1

$E=\frac{B\varepsilon_0\mu_0}{\sqrt{1-\frac{v^2}{c^2}}}=7\cdot 10^6~\frac NC.$