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Just another Usenet vandal.
Just block "Google Groups" period. Problem gone...
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For the initial spike:
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Nice.
Hi Sarah, how's things in Alaska?
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it'd behave basically the same as a single thicker strand
no, it would be different, it'd peak sooner,
Mostly induction. Here in the SW we can do slots.
Thanks.On Wed, 13 Jan 2010 17:42:23 -0800 (PST), Michael B
baugh...@bellsouth.net> wrote:
No.
The field strength is related to the number of coils.
So if I start out and go around the coil form 2,000
times with one wire, could I get the same effect by
using a multistrand, with each strand insulated
from the adjacent one?
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Well, finally, something that makes sense!
Yes.
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If I were to use a 10 strand
and only go around the coil form 200 times, would
it have the same effect?
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No.
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Litz wire would not have much current capacity,
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Litz wire is simply insulated wire stranded in a peculiar way in order
to reduce skin effect, and can have any current capacity required for
the application at hand.
http://en.wikipedia.org/wiki/Litz_wire
but would it have the same instantaneous magnetic field
from a capacitive discharge?
For the initial spike:
Version 4
SHEET 1 880 680
WIRE 64 0 0 0
WIRE 224 0 128 0
WIRE 224 32 224 0
WIRE 0 128 0 0
WIRE 224 160 224 112
WIRE 0 288 0 208
WIRE 224 288 224 240
WIRE 224 288 0 288
WIRE 0 368 0 288
FLAG 0 368 0
SYMBOL ind 208 144 R0
SYMATTR InstName L1
SYMATTR Value 1e-3
SYMBOL res 208 16 R0
SYMATTR InstName R1
SYMATTR Value 1000
SYMBOL cap 128 -16 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 1e-9
SYMBOL voltage 0 112 R0
WINDOW 3 24 104 Invisible 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 10 0 1e-9)
TEXT -34 392 Left 0 !.tran 1e-3
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It's not a question of multiple solder joints along the way,
it would be a beginning, and an end, with wires soldered
together at those points only.
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If you use stranded wire to make a coil with all of the strands soldered
together at the ends but insulated from each other at every other point,
then the resistance of each strand will be the end-to-end resistance of
the wire multiplied by the number of strands in the wire, and the
current in each strand will be:
1
Is = ----
It
where Is is the current in any strand and It is the total current in the
wire.
Since the strands are in parallel, the total resistance of the wire will
be:
1
Rt = ------
Rs n
where Rt is the total resistance of the wire,
Rs is the resistance of a single strand, and
n is the number of strands in the wire.
Graphically, (View in Courier) for a raw 1000' length of seven strand
enameled #10 AWG wire we have:
|<----------1000 feet------------>|
|<------------7 ohms------------->|
---------------------------------
|<------------7 ohms------------->|
---------------------------------
|<------------7 ohms------------->|
---------------------------------
|<------------7 ohms------------->|
---------------------------------
|<------------7 ohms------------->|
---------------------------------
|<------------7 ohms------------->|
---------------------------------
|<------------7 ohms------------->|
---------------------------------
while with the ends soldered together,:
|<-----------1000 feet---------->|
|<-------------1 ohm------------>|
| |
+--------------------------------+
| |
+--------------------------------+
| |
+--------------------------------+
| |
+--------------------------------+
| |
+--------------------------------+
| |
+--------------------------------+
| |
+--------------------------------+
Now, since I've answered your question courteously, would you extend me
the courtesy of bottom posting a reply, please?
JF
But whatever it is, they are putting some money into the idea.