Is using steel rebar for an electromagnet a good idea? - what lamps can use 200 watt bulbs
I build an electromagnet with a foot long piece of reinforcing steel. In the last step, I want you to power with AC / DC converter, I want the polarity is constant.
But now seems very weak magnet, I thought I had isolated the wire ran to get enough time. I've tried a DV converter 1.5 amps from Radio Shack, and a fully charged battery had normal use of cars, I even plugged directly into the wall. In all cases, I distribute a household with a lamp on (bulb of 200 watts) to power, I hit a switch, fuse in the house.
However, the magnet is in each case seems to be weak? I using the wrong kind of base? or should I wrap the wire around anymore?
Finally, I try to use a power converter RV - and I am offering with 12 volts and 40 amperes current, but from now - I want to make sure I'm looking for all my bases.
this is for a science project I am working. any help would be great.
Tuesday, January 5, 2010
What Lamps Can Use 200 Watt Bulbs Is Using Steel Rebar For An Electromagnet A Good Idea?
2 comments:
With a core of steel is a bad idea that steel has a much longer time for the industrial Magnetism, unlike the iron that has an immediate effect.
It should also wrap the wire around much longer.
Finally, the bar is too long. If I were U, I would try to reduce the length of the rod, and then see its effect. I'm pretty sure he is stronger and less magnetic field lines are lost.
Hope it helps,
BART
Most of the steel bars is very difficult to make a good basis for an electromagnet.
He has the magnetism very good.
While I seem to appreciate their sense of security and the current limit. You can get an idea of the strength of the magnet is measured by calculating the amp done convolutions.
A balance between the wire resistance, voltage and number of the tower.
Burn to train low-cable and fuses. You already know that because you are a light bulb as a limiter .. Curent
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