Re: [Phys-l] Is skin efffect a factor?

[chuck britton <cvbritton@embarqmail.com>]

On Jun 5, 2009, at Jun 5(Fri) 1:10 , John Denker wrote:

> On 06/05/2009 09:55 AM, Bernard Cleyet wrote:
> > A typical back EMF demo is to drop a magnet on to a conducting
> > plate.  One inch thick Cu cooled w/ LN2 is usual.  I wonder;  will
> > 1/2 inch thick work as well and, if so, because of skin effect?
>
>
> Is this not the world's easiest dimensional analysis (i.e.
> dimensional scaling) exercise?
>
> If not, please explain where the hangup is.


The hangup for ME is not having a CLUE as to what expression we are  
scaling!!