2010 | OriginalPaper | Chapter
Electromagnetism in Matter
Authors : Antonio Romano, Addolorata Marasco
Published in: Continuum Mechanics
Publisher: Birkhäuser Boston
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Let
S
be a continuous system, and let
C
(
t
) be the region occupied by
S
at the instant
t
. Generally,
C
(
t
) is the union of the disjoint regions
C
1
(
t
),…,
C
ν
(
t
), and
S
exhibits the same physical properties in each of these regions. For instance, if
S
consists of two adjacent dielectrics occupying the regions
C
1
(
t
) and
C
2
(
t
) in the presence of a fixed conductor of volume
C
3
, then we have
C
(
t
) =
C
1
(
t
)∪
C
2
(
t
)∪
C
3
∪
C
4
(
t
), where
C
4
(
t
) is the space around the dielectrics and the conductor.