Re: [Phys-l] three-way bulb

[Bernard Cleyet <bernardcleyet@redshift.com>]

Not so curiously, coiled coils of W (notoriously gray and variably w/ T) 
are more "black" than a ribbon or single coils.

bc reads Applied Optics.

Larry Woolf wrote:

> The 50 and 100 W filaments are in parallel so there is 110V across each
> of the filaments.  If we lived in a constant current world, then the
> filaments would be arranged in series.
>
> For details about light bulb dissection:
> <http://www.sci-ed-ga.org/modules/materialscience/light/pdf/section_11.p
> df>
>
> Larry Woolf
> General Atomics
> www.ga.com
> www.sci-ed-ga.org
>
>
> -----Original Message-----
> From: phys-l-bounces@carnot.physics.buffalo.edu
> [mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Bernard
> Cleyet
> Sent: Wednesday, April 05, 2006 8:02 AM
> To: Forum for Physics Educators
> Subject: Re: [Phys-l] three-way bulb
>
> "... or in series with each other"
>
> You mean parallel, don't you?  The one's I have (and no longer use) are
> labeled 30, 70, 100; 50, 100, 150; 100, 200, 300 [mogul base], etc.
>
>  
cut