Re: [femm] far B field

["Robert Macy" <macy@xxxxxxxxxxxxxx>]

Marco,

My experience is that once you're over 3 times the dimension of the magnet
away you pretty much have a dipole, which can be handy. Approximation is
within 1-2%

- Robert -



----- Original Message -----
From: mvalca
To: femm@xxxxxxxxxxxxxxx
Sent: Thursday, November 21, 2002 1:31 AM
Subject: [femm] far B field


Hello,
how can one say about the far B field, for example the field far from
a loudspeaker? Is it dipole-like? Is there a theory for this?

thank you

Marco



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