Electricity and Magnetism > Magnetic Materials DCS# 5H10.61

MU METAL SHIELD


APPARATUS
mu metal shield 202-20-B2
compass needle on thumbtack 202-20-B2
bar magnet 202-20-C
document camera
201


DESCRIPTION
Show that compass inside mu metal cylinder is unaffected by a bar magnet.  Remove the cylinder and the compass responds to the magnet held at the same distance.

NOTES

Center the compass in the cylinder by setting it on a transparent support, such as an inverted 50 ml beaker.