For plan electromagnetic waves propagating in the $z-$ direction, which one of the following combination gives the correct possible direction for $\vec E$ and $\vec B$ field respectively?
$\left( {2\hat i + 3\hat j} \right)$ and $\left( {\hat i + 2\hat j} \right)$
$\left( {-2\hat i - 3\hat j} \right)$ and $\left( {3\hat i - 2\hat j} \right)$
$\left( {3\hat i + 4\hat j} \right)$ and $\left( {4\hat i - 3\hat j} \right)$
$\left( {\hat i + 2\hat j} \right)$ and $\left( {2\hat i - \hat j} \right)$
A plane electromagnetic wave of angular frequency $\omega$ propagates in a poorly conducting medium of conductivity $\sigma$ and relative permittivity $\varepsilon$. Find the ratio of conduction current density and displacement current density in the medium.
If ${\varepsilon _0}$ and ${\mu _0}$ are respectively, the electric permittivity and the magnetic permeability of free space. $\varepsilon $ and $\mu $ the corresponding quantities in a medium, the refractive index of the medium is
The electric field in an electromagnetic wave is given by $\overrightarrow{\mathrm{E}}=\hat{\mathrm{i}} 40 \cos \omega\left(\mathrm{t}-\frac{\mathrm{z}}{\mathrm{c}}\right) N \mathrm{NC}^{-1}$. The magnetic field induction of this wave is (in SI unit):
Ratio of electric field and magnetic field gives which physical quantity ?
An $EM$ wave propagating in $x$-direction has a wavelength of $8\,mm$. The electric field vibrating $y$ direction has maximum magnitude of $60\,Vm ^{-1}$. Choose the correct equations for electric and magnetic fields if the $EM$ wave is propagating in vacuum