Definition of Ohm
Pronunciation:
ōm
n.
1.
(Elec.)
The
standard
unit
in
the
measure
of
electrical
resistance
,
being
the
resistance
of
a
circuit
in
which
a
potential
difference
of
one
volt
produces
a
current
of
one
ampére.
As
defined
by
the
International
Electrical
Congress
in
1893
,
and
by
United
States
Statute
,
it
is
a
resistance
substantially
equal
to
10
9
units
of
resistance
of
the
C
.
G
.
S
.
system
of
electro-magnetic
units
,
and
is
represented
by
the
resistance
offered
to
an
unvarying
electric
current
by
a
column
of
mercury
at
the
temperature
of
melting
ice
14
.
4521
grams
in
mass
,
of
a
constant
cross-sectional
area
,
and
of
the
length
of
106
.
3
centimeters
.
As
thus
defined
it
is
called
the
international
ohm
.
Ohm's law
(Elec.)
the
statement
of
the
fact
that
the
strength
or
intensity
of
an
electrical
current
is
directly
proportional
to
the
electro-motive
force
,
and
inversely
proportional
to
the
resistance
of
the
circuit
.
Related Words
abohm
,
megohm
,
resistance
unit
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