Re: Magnetic Feild Strength Question

I thought I was nuts as well but remeber that amount of current is only
existing for a split second. Ohms law says 2.5 X 350 = 850 amps.
Why would be inconcevable to have 140 amps at Discharge time 0?
Anyway, thanks for the link.


"Tom" <tgiorgi1@xxxxxxxxxxxxxxxxxx> wrote in message
news:46d63176$0$18990$4c368faf@xxxxxxxxxxxxxxxxx
Hello all. I am building a magnet charger and so far I have 2 Iron cores
with 430 turns of # 16 each around a 2 inch center core 6 inches long.
Initial test shows the coil around 2.5 ohms. So far I have discharged
350 volt at 3800 UF. I can go all the way up to 22000 uf with the bank I
have. That would give me .05 seconds of a zap. Am I correct that at higher
capacitance I will only increase the time and not the current? If my
calculations are correct I am getting a total of 860 ampere turns times
140 amps = 121800 ampere turns total. The big question I can seem to
answer is aprox how much of a field is thing producing? Other then having
a 3 inch piece of iron ingot sucked out of my hand at the speed of light
from a distance of 4 inches and slamming against the poles I have not a
clue! I will likely be making a more efficient coil fixture but I have a
real nice SCR charge circuit built that will have a variable capacitance
feature.

Any insight here would very much appreaciated.

Tom



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