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Additional
current density
English Wikipedia - The Free Encyclopedia
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Current density
In
electromagnetism
,
current density
is the
electric current
per unit area of cross section. It is defined as a
vector
whose magnitude is the
electric current
per cross-sectional area at a given point in space (i.e. it is a
vector field
). In
SI units
, the electric current density is measured in
amperes
per
square metre
.
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