Magnetic suction: terminology; wire sources/types

From: Nicholas Bodley (nbodley@world.std.com)
Date: Wed Mar 28 2001 - 14:52:17 PST


The accepted term is *turns* of wire, when you are concerned with the
number of times the wire wraps around the core. A *coil* of wire is
the completely-wound bundle. This terminology goes back to about 1870
or so.

For insulated wire, you can also use film-insulated types; magnet
wire at radio Shack is a (costly) alternative that makes much more
compact coils.

If you can disassemble a transformer (or other electromagnetic
device, but probably not a motor!), the wire in it is free, and
should be in very good condition. (The wire in a motor might be hard
to remove, and each individual coil might not contain much wire,
depending upon the design.)

Nicholas Bodley |@| Waltham, Mass.
Please reply to nbodley@alumni.princeton.edu
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