
How do EM waves propagate? - Physics Stack Exchange
Wave Propagation Speed of a transmission medium is the speed at which a wavefront passes through the medium, relative to the speed of light. For optical signals, the velocity factor is the …
How can I calculate the wave propagation speed in a copper wire?
The wave moves arround the copper wire through the dielectric isolator So the dielectric constant of the isolator fixes the velocity to speed of light divided by the square root of the dielectric …
Electromagnetic Waves speed in Conductor - Physics Forums
2010年12月21日 · I think the following statement, "E-field (and the H field) are always perpendicular to the direction of propagation of the EM wave", means that the instantaneous …
Phase velocity and wave velocity - Physics Forums
2017年5月29日 · The wave speed is the speed with which we have to move along with the wave to keep alongside a point of a given phase, such as a particular crest of a wave on a string. …
Propagation of electromagnetic waves in a lossy media - Physics …
2010年4月15日 · The propagation term is related to the wave number by [tex] \gamma = ik = -jk[/tex] It's simply the product of the imaginary constant in the exponential and the wave …
How to find the direction of wave propagation - Physics Forums
2018年1月16日 · However, let me give this general hint: A solution to the one-dimensional wave equation can always be written on the form ##\Psi(x,t) = f(x-vt) + g(x+vt)##, where the first …
How to determine the direction of a wave propagation?
First the assumption/definition is that $\omega$ and $\beta$ are positive constants. Next you are asking about the phase velocity ie the velocity of a crest, a trough, any fixed point on wave …
fluid dynamics - Wave propagation in an incompressible flow
Wave propagation in an incompressible flow. Ask Question Asked 12 years, 1 month ago. Modified 12 years, 1 ...
Relation between wavenumber and propagation constant
2018年9月12日 · Assuming $\e{\,\j\omega t}$ time dependency, a wave in the Hertz vector potential field can be written as: $$\vec{\Pi}(x) = \vec{\Pi}(0) \e{-\gamma x}$$ The propagation …
waves - Direction of the wavevector? - Physics Stack Exchange
The "direction of wave propagation" is the direction of a wave's energy flow, and the direction that a small wave packet will move, i.e. the direction of the group velocity. For light waves, this is …