The electric field vector of an electromagnetic wave is represented as `E_x = E_m Sin (x -ωt). Write the equation for the magnetic field vector.

The electric field of an ultraviolet ray is given by E=60 sin (0.5 xx 10^3 - 1.5 xx 10^11 t) What is the amplitude of the magnetic field vector in the ultraviolet ray?

The electric field amplitude of an electromagnetic wave is 15V/m. Find the magnetic field amplitude of the wave

The electric field of a plane electromagnetic wave travelling in the +ve Z-direction is described by