最終更新日：2022/12/24
Definition: The ampere, symbol A, is the SI unit of electric current. It is defined by taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10⁻¹⁹ when expressed in the unit C, which is equal to A s, where the second is defined in terms of Δν_(Cs). (The International Bureau of Weights and Measures)
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Definition:
The
ampere,
symbol
A,
is
the
SI
unit
of
electric
current.
It
is
defined
by
taking
the
fixed
numerical
value
of
the
elementary
charge
e
to
be
1.602
176
634
x
10⁻¹⁹
when
expressed
in
the
unit
C,
which
is
equal
to
A
s,
where
the
second
is
defined
in
terms
of
Δν_(Cs).
(The
International
Bureau
of
Weights
and
Measures)
