Advertisements
Advertisements
Question
Which mode of propagation is used by short wave broadcast serves?
Solution
APPEARS IN
RELATED QUESTIONS
Can an electromagnetic wave be deflected by an electric field or a magnetic field?
An electromagnetic wave going through vacuum is described by
E = E0 sin (kx − ωt); B = B0 sin (kx − ωt).
Which of the following equations is true?
Discuss the Hertz experiment.
Let an electromagnetic wave propagate along the x-direction, the magnetic field oscillates at a frequency of 1010 Hz and has an amplitude of 10-5 T, acting along the y – direction. Then, compute the wavelength of the wave. Also write down the expression for the electric field in this case.
If the relative permeability and relative permittivity of the medium is 1.0 and 2.25, respectively. Find the speed of the electromagnetic wave in this medium.
Dimensions of 1/(µOE0) is
Electromagnetic waves are produced by ______.
Light with an energy flux of 20 W/cm2 falls on a non-reflecting surface at normal incidence. If the surface has an area of 30 cm2 the total momentum delivered (for complete absorption) during 30 minutes is ______.
A plane electromagnetic wave propagating along x direction can have the following pairs of E and B.
- Ex, By.
- Ey, Bz.
- Bx, Ey.
- Ex, By.
An infinitely long thin wire carrying a uniform linear static charge density λ is placed along the z-axis (figure). The wire is set into motion along its length with a uniform velocity `v = vhatk_z`. Calculate the poynting vector `S = 1/mu_0 (E xx B)`.