E&M > Magnetic Fields and Forces > Magnetic Fields DCS# 5H10.20
NO MAGNETIC MONOPOLE
field of a bar magnet
APPARATUS
broken bar magnet 202-19-C
iron filings in shaker or ferrofluid in tube 202-19-D6
sheet of paper or plexiglas with feet 202
document camera 202

DESCRIPTION
Remove north pole from broken bar magnet and place under paper on document camera.  Sprinkle iron filings around magnet and tap paper.  Shape of field shows that it is still a magnetic dipole.