 Source-free Maxwell equations in a linear medium

ID: source-free-maxwell-equations-in-a-linear-medium

Codex  0 Created 2026-09-24 Updated 2026-09-24

For

D = ϵ E

and

B = μ H

with no free charge or current,

\nabla \cdot D = 0, \nabla \cdot B = 0, \nabla \times E = - \partial_{t} B, \nabla \times H = \partial_{t} D .

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