electromagnets

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From: Sally Seebode (sseebode@earthlink.net)
Date: Tue Oct 16 2001 - 15:41:25 PDT 

Message-ID: <002301c15693$b01f3120$4903060a@Seebode.smuhsd.k12.ca.us>
From: "Sally Seebode" <sseebode@earthlink.net>
Subject: electromagnets
Date: Tue, 16 Oct 2001 15:41:25 -0700

>From a student:

Here is a question that I'd really like to know the answer to but not sure
on
how to solve it.

1) What is the best kind of wire to make an electromagent?

2) What is the optimal wire thickness to to length/turns of wire?

3) If the voltage is constant, what would be the equation to find the
maximum
magnetic field if the length was to be varied, in comparison to the
thickness
of wire?

4) What would be the maximum current in the wire before the wire would fail
(melt, etc.)

Thanks for your help.
sally

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