Question?

To: tesla-at-pupman-dot-com
Subject: Question?
From: Scott MacGregor <smacgregor-at-aasp-dot-net> (by way of Terry Fritz <twf-at-verinet-dot-com>)
Date: Wed, 09 Dec 1998 11:49:50 -0700
Approved: twf-at-verinet-dot-com

To the list,

Does anyone know the formula for calculating the reverse voltage and
current levels delivered from a MULTI-LAYER coil after a steady state DC
voltage applied to the coil is suddenly interrupted? (if the coil is
able to discharge through a spark gap) I hope I'm stating this properly.
Example:12VDC battery across an air core coil consisting of 20 layers of
#20 copper 2" D (average) and 6" tall. Break the battery connection
suddenly and provide a .025" gap in its place.  
-- 
Regards,

Scott MacGregor
9 South St.
Plainville, MA 02762
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Power Assist Electric Bicycles
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ZAP, Inc. 
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