The motion of these electrically charged electrons constitutes an electric current flowing along the tube, just as electrons moving in a copper wire constitute an electric current in the wire.
(The motion of these electrically charged electrons; constitutes; an electric current flowing along the tube; just as electrons moving in a copper wire constitute an electric current in the wire) (an electric current; flowing; along the tube) (electrons; moving; L:in a copper wire)
The motion of these electrically charged electrons an electric current electrons
constitutes flowing moving
an electric current flowing along the tube just as electrons moving in a copper wire constitute an electric current in the wire
along the tube
L:in a copper wire