Re: question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

I hope you dont have a center grounded transformer.The current flow of your
coil is from your transformer to the coil through the air-coil capacitance
through ground and back to the transformer. Your coax acts like a
transformer winding fed through capacitance of the insulation. Ac is NOT dc
     Robert  H
       

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Mon, 28 Jan 2002 22:34:37 -0700
> To: tesla-at-pupman-dot-com
> Subject: RE: question
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Mon, 28 Jan 2002 22:48:49 -0700
> 
> Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <dave-at-volantis-dot-org>
> 
> Peter,
> 
> Here's a question for you.  I have a 27" flat spiral secondary.  Connected
> to the outer wire is the positive terminal of a 50KV potential transformer.
> The negative terminal of the 50KV potential transformer is connected to
> ground.  There is nothing connected to the center of the flat spiral
> secondary.  Over the outside of the 27" flat spiral secondary coil I have
> wound a primary of 6 turns of coax cable.  At one of the coax ends I place a
> diode.  Connecting the other end of the coax and the diode to a digital
> voltmeter, I get 150V of DC current when I power up the transformer.
> 
> Why is there an induced voltage in the primary if there is no current
> flowing in the secondary?  And why does the coax cable vibrate?
> 
> Dave
> 
> David Thomson
> dave-at-volantis-dot-org <mailto:dave-at-volantis-dot-org>
> 
> 
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Monday, January 28, 2002 5:36 PM
> To: tesla-at-pupman-dot-com
> Subject: question
> 
> 
> Original poster: "Peter Lawrence by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <Peter.Lawrence-at-Sun-dot-com>
> 
> 
> Trick question for the day...
> 
> Tesla coils work by "induction", the changing magnetic field around the
> secondary coil induces a voltage in it. The direction of the induced voltage
> is that of the coil, so the question is why don't the sparks also go around
> in the same circular pattern as the induced voltage.
> 
> Trickier question, why doesn't this happen when the toroid breaks out early.
> 
> Peter Lawrence.
> 
> 
> 
> 
>