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From: Mark <mstanley AT technologist DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Daughter's Science Fair
Date: Fri, 16 Mar 2012 10:39:46 -0400
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Reply-To: geda-user AT delorie DOT com

Sorry to be so terse, I'm supposed to be working. ;)

It needs to be a *changing* magnetic field in order to induce current into the secondary coil.

-Mark

On Friday, March 16, 2012 10:02:02 am you wrote:
> another nail the same way but with a little bulb attached.  Check my
> theory, shouldn't the electromagnetic field produced by the coil and nail
> with the battery induce a current in the other coil when placing the nails
> adjacent and parallel?