At what distance from 100W isotropic power source electric field of electromagnetic wave will be `E_(m)`=15v/m

The phase and orientation of the electric field vector linked with electromagnetic wave differ from those of the corresponding magnetic field vector, respectively by:

The ratio of amplitude B_(0) and E_(0) of the magnetic electric fields associated with an electromagnetic wave is

The rms value of the electric field of a plane electromagnetic wave is 314V/m. The average energy density of electric field and the average energy density are

If E and B represent electric and magnetic field vectors of the electromagnetic wave, the direction of propagation of eletromagnetic wave is along.

If E and B represent electric and magnetic field vectors of the electromagnetic wave, the direction of propagation of eletromagnetic wave is along.

If E and B represent electric and magnetic field vectors of the electromagnetic wave, the direction of propagation of eletromagnetic wave is along.

The variation of potential with distance x from a fixed point is shown in figure. Find the magnitude of the electric field (in V // m) at x=13 m .

The maximum electric field of a plane electro- mag-netic wave is 88 V/m. The average energy density is

A charge of mass .m. charge .2e. is released from rest in a uniform electric field of strength .E.. The time taken by it to travel a distance .d. in the field is

An electromagnetic wave is propagating in vacuum along z-axis, the electric field component is given by E_(x)=E_(0)sin (kz-omegat) . Then magnetic components is