On Wed, 30 Mar 2011 12:08:29 -0700 (PDT), jamesgangnc
wrote:

On Mar 30, 2:16Â*pm, wrote:
On Wed, 30 Mar 2011 07:30:59 -0700 (PDT), "





wrote:
On Mar 29, 7:07Â*pm, "Ralph Mowery" wrote:
"Limp Arbor" wrote in message

...
Question: (fixed type font picture)
L1 Â* Â* Â* Â* Â*N Â* Â* Â* Â* Â*L2
| Â* Â* Â* Â* Â* | Â* Â* Â* Â* Â* |
|____@@_____|____@@_____|
Â* Â*Outlet 1 Â* Â*Outlet 2

Are these statements correct using the above simple MW circuit?
If you lose the neutral and have a lamp plugged into Outlet 1 and
nothing in Outlet 2 the lamp wont work.
If you lose the neutral and have a lamp plugged into Outlet 1 you will
have the potential of 220V at Outlet 2.

1. Â*If you loose the neutral and a lamp in outlet 1, it will not work if
nothing is in outlet 2. Â*Neither will one in outlet 2 if nothing is in
outlet 1.

2. Â*If anything is connected to outlet one and two at the same time, the
voltage will split depending on the load. Â*The higher the resistance of the
load at one outlet compaired to outlet 2, the higher resistance will have
the most voltage across it. Â*If the loads are exectally equal, they will
both have half the supply voltage across them. Â* That is in your example, if
you put in a 60 watt lamp in each outlet and they both come up to the same,
they will appear normal with 110 volts across each one. Â*If you just put one
lamp in one of the outlets, you will measuer 220 volts ( more like 219.99999
or so) Â*on the other one that does not have a load. Â*As you put a load on
that outlet , the voltage will start dropping. Â*It may reach almost but not
exectally 0 volts, while the other outlets voltage will rise toward 220
volts.

And if you put any lamp in outlet one, and nothing in outlet two, the
potential
across the terminals of outlet two will be 240V. Â*I believe that was
the
question.

Â*And the answer is a "qualified yes".

Open circuit there will be 240.
Now, if there is a 50 watt bulb connected to outlet one, and you plug
a 200 watt bulb into outlet 2, the bulb in outlet one will blow
because there well be a higher voltage drop across it than across the
200 watt bulb.The 200 watt bulb will just glow untill the 50 pops.- Hide quoted text -

- Show quoted text -

You have to be careful with that a bit. Light bulbs have a variable
resistance that changes based on the temp. I'm not saying it wouldn't
do what you say just that occasionally they behave in unexpected
manners.
You saying there is a possibility it would pop the 200? Or that the
50 could survive?
Particularly if both are tungsten bulbs, not a chance of either. Both
bulbs will be cold when the power comes on. Both will be at minimum
resistance (resistance increases and current drops as the filament
heats up) - and the 50 will heat up first, making it's resistance
drop to the point there is not enough current to heat the 200 - which
is already only 1/4 the resistance of the COLD 50.

Only one POSSIBLE result.