Re: Nearfield Electromagnetic Effects on Einstein Special Relativity

On Thu, 29 Mar 2007 12:17:47 +0200, William
<william.walker@xxxxxxxxxx> wrote:


Both Griffiths and I get the same solution for the B field generated by
an oscillating dipole (Griffiths- Ref equation just above Eq. 11.19, p.
447), compared to my solution Eq. 47). Note that the constants differ
because I use CGS units (as in Jackson EM) and Griffiths uses MKS units.
Unfortunately because of approximation 11.14 (r>>c/w i.e. kr>>1),
snip

You make a serious error using CGS instead of MKS because it lumps D
with E and B with H, which only a mathematician could accept. Where
are eps0 and mu0? What are their units? Is E =equal to V/m? Then so is
D but it makes no sense.
The CGS constitutive equations are a joke. P = 1/4pi(D - E) indeed.

John Polasek


.

Relevant Pages