On May 11, 4:26*am, "Szczepan Bialek" wrote:
Uzytkownik "K1TTT" napisal w ...
On May 10, 7:41 am, "Szczepan Bialek" wrote:



But the source of sound is an increase of the pressure.
The source of electric waves is an increase of the voltage.

The voltage increases at the ends of a dipole.

The electric waves and sound propagate in metal wires, but with different
speeds.
Are electric waves in a wire also transversal?
yes.

" As the wave propagates along the line, it is accompanied by currents which
flow longitudinally in the conductors".
From:http://www.answers.com/topic/electro...e-transmission

In reality no pure transversal waves. Such are only possible in the math.
S*

but as dilbert's trolls know, numbers create reality, not the other
way around. if you can't describe it in a formula, it can't exist.
and yes, while the current moves longitudinally along the wire, the
fields are transverse. look at the formulas, they apply to the wire
also. they just get more complex because you have to take into
account the boundry conditions at the interface between the wire and
what is around it... something that freshman physics and calculus are
not enough to handle.