electro-Physics: 17.3409 volts

[Tom Jennings]

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.)