Which one of the following statements concerning permanent bar magnets is NOT true?

W) The north pole of a permanent magnet is attracted to a south pole of another magnet

X) The direction of a magnetic field is indicated by the north pole of a compass

Y) All permanent magnets are surrounded by a magnetic field

Z) When a permanent magnet is cut in half, one piece will be a north pole and one a south pole
Z) WHEN A PERMANENT MAGNET IS CUT IN HALF, ONE PIECE WILL BE A NORTH POLE AND ONE PIECE WILL BE A SOUTH POLE