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Re: negative permeability and permittivity

At 9:53 PM -0500 3/25/00, Ludwik Kowalski wrote:


Peter Schoch asked about "a negative permeability".

A dielectric with negative permeability would allow me
to build a capacitor with negative C storing negative
energy proportional to V^2. Crazy! I would not hesitate
to say this to your student. Somebody is probably using
the familiar word for something else. This is always
an invitation to trouble.
Ludwik Kowalski

This 'negative permeability' is limited to a range of frequencies in
the microwave realm.
The neat DC effects you worry about would NOT show up :-(

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