Re: Is toroid a Faraday cage?

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

Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz <twftesla-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>

Tesla list wrote:
> 
> Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<davep-at-quik-dot-com>

>         A pretty question.  Has anyone measured increased
>         belt drag in a van de Graaf?
>         (I'm not saying it doesn't happen, just not sure...)

There is surely a drag, as the belt moves charges against the electric
field, increasing the energy stored at the terminal. This energy comes
from the mechanical energy spent to move the charges against the field.

Antonio Carlos M. de Queiroz