electro-Physics: 17.3409 volts

From: Tom Jennings <tomj_at_wps.com>
Date: Mon Dec 13 17:34:48 2004

On Mon, 13 Dec 2004, Carlos Murillo wrote:

> > It isn't much good for home use. In fact, lamps don't
> > do as well on DC as AC because of the electrical effects
> > of the wire evaporating ( not sure which end goes first ).
>
> Ah, the "Edison Effect".

I'd heard of the effect, but not for a long time, and probably paid little
attention to it :-)

So, how pronounced is this DC-filament effect? If I collect
dead lightbulbs from my cars, should I see filaments with gaps
burned towards the ground end more often than not?

(Tapered filaments would fix this.)
Received on Mon Dec 13 2004 - 17:34:48 GMT