វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
small
medium
large
Impedance
ENGLISH MEANING
noun
1.
The
apparent
resistance
in an
electric
circuit
to the
flow
of an
alternating
current
,
analogous
to the
actual
electrical
resistance
to a
direct
current
,
being
the
ratio
of
electromotive
force
to the
current
. It is
equal
to R2 + X2,
where
R =
ohmic
resistance
, X =
reactance
. For an
inductive
circuit
, X =
2/fL
,
where
f =
frequency
and L =
self-inductance
; for a
circuit
with
capacity
X = 1 /
2/fC
,
where
C =
capacity
.