-
DIRECT
CURRENT
-
The
direct
current
must
____________________
the
following
____________________
:
The
electrons
always
____________________
in
the
same
____________________
The
____________________
of
____________________
is
the
____________________
at
all
____________________
.
There
is
a
____________________
current
.
-
ALTERNATING
CURRENT
-
The
____________________
current
must
fulfill
the
following
requirements
:
The
electrons
____________________
changing
____________________
The
____________________
of
electrons
is
____________________
.
____________________
vary
____________________
time
.
All
the
____________________
have
same
____________________
.
There
is
a
____________________
voltage
that
doesn't
____________________
with
____________________
.
