The relation between electric field E and magnetic field H in an electromagnetic wave/is

• A

  E =H

• B

  $\mathrm{E}=\left(\frac{{\mathrm{\mu }}_0}{{\mathrm{\epsilon }}_0}\right)\mathrm{H}$

• C

  $\mathrm{E}=\sqrt{\left(\frac{{\mathrm{\mu }}_0}{{\mathrm{\epsilon }}_0}\right)}\mathrm{H}$

• D

  $\mathrm{E}=\sqrt{\left(\frac{{\mathrm{\epsilon }}_0}{{\mathrm{\mu }}_0}\right)}\mathrm{H}$