Re: Electron at rest - magnetic field?

Rod Ryker wrote: 


Bill Hobba <rubbish@xxxxxxxx> wrote in message
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"Rod Ryker" <rryker@xxxxxxxx> wrote in message
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>
>
> Bill Hobba <rubbish@xxxxxxxx> wrote in message
> news:RE_%e.5446$U51.2993@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>>
>> "Rod Ryker" <rryker@xxxxxxxx> wrote in message
>> news:8a3f9$433f0bd5$d8442809$22074@xxxxxxxxxxx
>> > Long ago Faraday proved, not caring at the time,
>> > that electrons at rest have a magnetic field.
>>
>> Since that in not what Faraday proved it is you who speaks with forked
>> tongue.
>>
>> Bill
>>
>
> Rod: Read up on Faraday's Cage, Bill.

I  have - you obviously have not since it does not show electrons at rest
have a magnetic field - even assuming one can give a specific velocity to
a 
quantum object.

Bill


Rod: The Cage was steel.

Is it? I am under the impression that a Faraday cage can be made of any conductor - but hey what do I know I'm only an electronics engineer.

Steel is a magnetic material.

Iron is a magnetic material. Steel isn't necessarily so. Stainless steel is non magnetic despite its high Iron content.

Magnetic Fields can't pass
through magnetic materials.

If you put a bar magnet inside a 'tin' made of iron you can detect its presence with a compass. What a magnetic shield does is to concentrate the lines of force within itself so that less (not none) appear outside. The thicker the magnetic material, the wider the magnetic path the less will be detected on the other side.

Hence, electrons can't pass
through a magnetic material.

electrons can't pass through a lot of non magnetic materials - so whether the material is magnetic or not would not appear to be the critical factor.

--
Rod Ryker...
The intricacies of nature is man's cannon fodder.



--
John Kennaugh
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