$$ Any QUANTiTY of the form m1*v1^2/2 is Volt*CHARGE, V*Amp*sec.
```Brian.
PD wrote: > > wrote: > > PD wrote:
For example, electrons carry charge and electromagnetic
radiation does not; both carry energy and momentum. Thus,
we know that electromagnetic radiation is not carried by
electrons because no *charge* is carried away from the
source, though momentum and energy most certainly are.
$$ Any QUANTiTY of the form m1*v1^2/2 is Volt*CHARGE, V*Amp*sec.
```Brian.
PD > >
1. How is it determined that no charge is carried away?
Lots of ways. An ammeter would measure the charge carried away
as a DC (not AC) current.
$$ AC current is an Alternating DC current, Dimwit. ```Brian.
-=- There is no DC current measured in a radio antenna.
2. An electron traveling in a wire generates an EM wave
perpendicular to its direction....does a photon alos generate
an EM wave perpendicular to its direction???
No. Remember: light (EM radiation) has both particle and wave
aspects.
$$ Technically, "light" AND "heat" ARE "..the same thing", idiot.
EM radiation, photons, they are all labels for *the same thing*.
So when you make a statement like "does a photon also generate an EM
wave," you're asking whether light generates light. The answer to that
is no.
(I think I read it has a magnetic
field (EM)perpendicular to its direction....which is strange
since the photon itself is an EM wave)
Re: Questions about radiation and em waves
Re: Any QUANTiTY of the form m1*v1^2/2 is Volt*CHARGE, V*Amp*sec.
Re: AC=Alternating DC, Dimwit.
.
