smooth sphere vs unsmooth sphere
From: Sulaiman Abdullah [SMTP:sulabd-at-hotmail-dot-com]
Sent: Friday, April 03, 1998 3:48 AM
Subject: Re: smooth sphere vs unsmooth sphere
>From: Bert Hickman [SMTP:bert.hickman-at-aquila-dot-com]
>Sent: Friday, March 27, 1998 8:22 AM
>To: Tesla List
>Subject: Re: smooth sphere vs unsmooth sphere
>Tesla List wrote:
>> From: Sulaiman Abdullah [SMTP:sulabd-at-hotmail-dot-com]
>> Sent: Thursday, March 26, 1998 10:25 AM
>> To: tesla-at-pupman-dot-com
>> Subject: Re: smooth sphere vs unsmooth sphere
>> You can estimate the voltage produced by your coil now.
>> VOLTAGE = 2.83 MV x R (R = radius in meters)
>> I just worked this formula out today based on a commonly accepted
>> of 25 micro-coulombs per square meter being the limit before
>Where'd you find the 25 uC/square meter figure? Was this for DC?
>-- Bert --
Yes, this rersult is near enough to a similar 'rule of thumb' which
gives 3 kV / mm whether in a 'gap' or at the edge of a sphere.
V = 2.83 Mv x R (R = radius of sphere in meters) ... comments?