Feet Coil Enameled
 |
US $41.90
How to create a Lenz's Law demonstration device?
I have seen a few devices for sale on the web such as a copper tube and a neodynium magnet. You drop the magnet vertically through the tube, and it moves very slowly due to a reactionary magnetic field produced by the currents flowing thru the copper (Lenz's Law).
Anyway, I want to build my own for cheaper. I want to buy a good neodynium magnet about one inch in diameter. Then I want to buy a piece of PVC pipe and about 200 feet of 30AWG enamel-coated wire (part of a magnet-wire set from Radio Shack). I figure I can get about 500 turns, and then connect the two ends of the coil together to allow current to flow through the coil.
Questions:
1) Do you think this will work sufficiently?
2) Would a wider-diameter wire be better? (lower resistance)
3) How do I get the coiled wire to stay on the PVC pipe? I hear a varnish coating does the trick.
Thanks you.
Try this as an experiment.
Instead of a pipe that is straight, use a pipe that has been
bent into a circle. Then wrap 22 or 20 gauge wire around that
of at least 5 layers. This will create a torus. Use two plastic plates to house this in,
then use an electric motor to turn your magnet in the center
of the top plate so that the current that it produces will travel
down the skin of foil wrapped on the outside. The current
output of the magnet should be 15% of the torus.
This should give you controlable lift from the ground.
What you are thinking of doing your way is using lenz law to produce the beginning of an accelerator. That can be very
unsettling if you have no way to catch the magnet at the other end. By the way during the 1940's experiments were done to see if this could be an effective weapon. Any one out there
can try this experiment. Try different coil current strengths
to see what happens. remember to adjust magnet output
each time. By the way each layer of any coil should be varnished, and the smaller the wire, the better the coil, because you will achieve more windings that way. Have fun
with both, but remember to think of safety at all times. Electrical current can bite you.
VAWT : Build a Mag-Lev VAWT wind turbine from cheap parts........
You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
Comments are closed.