It would be called an electrophorus.
On Wed, Mar 26, 2014 at 5:03 AM, Jim Lux <jimlux@xxxxxxxxxxxxx> wrote:
>
>> this has been noticed by lots of folks. It's not magnetic fields, but
> electrostatic. Your coil has a nice insulating surface, so the secondary
> makes a fine capacitor.
>
> I forget what it gets called if you want to search the archives. "residual
> charge" would be a good start.
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