Re: Joules

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

Original poster: "Jonathan Peakall by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jpeakall-at-madlabs.info>

Ken,

Thanks from the mathematically challenged (me)!

Jonathan Peakall

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, March 20, 2002 4:17 PM
Subject: Re: Joules


> Original poster: "Crow Leader by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tesla-at-lists.symmetric-dot-net>
>
> the easy way to calculate energy in a cap for tesla coiling is to not play
> with really large and small numbers at all.
>
> energy (J) = (kilovolts squared times uF) /2
>
> let's pretend what a 0.05uF cap charging off a 15kV transformer can store.
>
> peak voltage = 1.4 * 15 = 21kV. the cap can charge to a peak of 21kV.
>
> so 21 * 21 = 441
> now multiply by 0.05  you don't even need a calculator- just divide by 20.
> now we have 441*0.05 = 22.05. Divide that by 2. So we now we know that the
> cap can store upto 11J, and you did not even have to play with lots of
> decimal places.
>
> KEN
>
>
>
> Tesla list writes:
>
> > Original poster: "Jeff Kamla by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <jeffk-at-sinclair-dot-net>
> >
> > Hi  All
> >
> >   can someone tell me what the formula is  to convert voltage and
> > capacitance to Joules.
> >
> >                thanks.                    jeff......
> >
> >
> >
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