最終更新日：2024/07/30
(electromagnetism) The vector obtained in the direction of a right-hand screw from the cross product (vector product) of the electric field vector rotated into the magnetic field vector of an electromagnetic wave. Note: The Poynting vector, with transmission media parameters and constants, gives the irradiance and direction of propagation of the electromagnetic wave. Mathematically: ⃑P=⃑E⨯⃑H.
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Poynting vector
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Poynting vector
noun
(electromagnetism)
The
vector
obtained
in
the
direction
of
a
right-hand
screw
from
the
cross
product
(vector
product)
of
the
electric
field
vector
rotated
into
the
magnetic
field
vector
of
an
electromagnetic
wave.
Note:
The
Poynting
vector,
with
transmission
media
parameters
and
constants,
gives
the
irradiance
and
direction
of
propagation
of
the
electromagnetic
wave.
Mathematically:
⃑P=⃑E⨯⃑H.
意味（1）
(electromagnetism)
The
vector
obtained
in
the
direction
of
a
right-hand
screw
from
the
cross
product
(vector
product)
of
the
electric
field
vector
rotated
into
the
magnetic
field
vector
of
an
electromagnetic
wave.
Note:
The
Poynting
vector,
with
transmission
media
parameters
and
constants,
gives
the
irradiance
and
direction
of
propagation
of
the
electromagnetic
wave.
Mathematically:
⃑P=⃑E⨯⃑H.
