What do electromagnetic waves $NOT$ transport?

An electromagnetic wave travelling in $x$-direction is described by field equation $E_y = 300 \sin \omega \left( t - \frac{x}{c} \right)$. If the electron is restricted to move in $y$-direction only with speed of $1.5 \times 10^6 \text{ m/s}$, then the ratio of maximum electric and magnetic forces acting on the electron is . . . . . . .

How is the average energy density in an electromagnetic wave related to the magnetic field?

The following travelling electromagnetic wave $E_x=0$,$E_y=E_0 \sin (kx + \omega t)$,$E_z=-2E_0 \sin (kx - \omega t)$ is:

Long-distance radio broadcasting uses which of the following waves?

Consider an electromagnetic wave propagating in a vacuum. Choose the correct statement.