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Electromagnetism
Electromagnetism
is a branch of
physics
which involves the study of the
electromagnetic force
, a type of physical interaction that occurs between
electrically charged
particles. The electromagnetic force usually shows
electromagnetic fields
, such as
electric fields
,
magnetic fields
, and
light
. The electromagnetic force is one of the four
fundamental interactions
in
nature
. The other three fundamental interactions are the
strong interaction
, the
weak interaction
, and
gravitation
.
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