Whatever the shape of the wire a DC current can't emit radio waves AFAIK. The
witricity experimental device uses AC at MHz frequencies (cf the link I
provided, here it is again
http://www.mit.edu/~soljacic/MIT_WiTricity_Press_Release.pdf )
Michel
- Original Message -
From: Harry
The article doesn't appear to contain the term AC.
It only speaks of an electrical current although it describes the
magnetic field as oscillating at MHz frequencies. Perhaps this is
inaccurate.
Perhaps it is more correct to say the oscillation starts only when both the
power supply (sender)
]:Witricity scheme (was Re:Tesla Revisted)
The article doesn't appear to contain the term AC.
It only speaks of an electrical current although it describes the
magnetic field as oscillating at MHz frequencies. Perhaps this is
inaccurate.
Perhaps it is more correct to say the oscillation starts
In reply to Michel Jullian's message of Sat, 9 Jun 2007 19:26:17 +0200:
Hi,
[snip]
Whatever the shape of the wire a DC current can't emit radio waves AFAIK. The
witricity experimental device uses AC at MHz frequencies (cf the link I
provided, here it is again
Ah, no.
Electrons in wires generally move far far far too slow to produce
synchrotron or cyclotron radiation at a radiofrequency and while I'm not
100% sure I believe that a uniform current in all parts of the loop would
remove this effect.
DC is still DC if pulsed and will create radiowaves.
On
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