វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
small
medium
large
Electro-magnet
ENGLISH MEANING
noun
1.
A
mass
,
usually
of
soft
iron
,
but
sometimes
of
some
other
magnetic
metal
, as
nickel
or
cobalt
,
rendered
temporarily
magnetic
by
being
placed
within
a
coil
of
wire
through
which
a
current
of
electricity
is
passing
. The
metal
is
generally
in the
form
of a
bar
,
either
straight
, or
bent
into
the
shape
of a
horseshoe
.