Re: [ATM] ATM: What do they offer:

[Bruce MacDonald <brumac@gmail.com>]

That might explain why incandescent filaments typically fail the
instant you flick the switch.

Is the increased resistance due to the fact that filaments are
typically coils, and hence inductors, or is it a thermal property?

I'm not sure why you would expect lamps in series to glow w/ different
intensities.
If the filaments are identical, once equilibrium is reached, they will
all be the same, no?

BM

On 6/18/05, Richard Schwartz <richas@earthlink.net> wrote:
> At last night's meeting, one of the attendees mentioned that incandescent
> lights have a cold starting resistance that is only 1/10 the resistance they
> have at full brightness.   If this is so, why is it that two identical lamps
> in series glow with approximately equal brightness?   Why can't we make
> thermo-optical flip-flops that use this principle?
> 
> . . . Richard
>
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