There
are
____________________
different
types
of
electric
currents
.
Direct
current
,
which
are
produced
by
____________________
and
cells
,
where
the
electrons
always
move
in
the
____________________
direction
.
____________________
currents
,
which
reach
our
homes
through
the
electricity
____________________
,
where
electrons
____________________
direction
periodically
.