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Re: [Phys-l] Poynting Vector

ah, but ANGULAR momentum is there.

Turn off the magnetic field and where does the angular momentum 'go'?

Feynmann covers a similar non-trivial thought experiment
(Vector Potential)


On Jun 28, 2008, at Jun 28(Sat) 1:50 , John Mallinckrodt wrote:

Thus, there can be no net energy or momentum flow in the case under
consideration or any other involving an electrostatic E field in a
uniform B field.