Electricity and Magnetism > Magnetic Materials > Diamagnetism
DCS# 5G30.35

DIAMAGNETISM OF A GRAPE

pivoting grapes

APPARATUS
two grapes IGA
cork on nail as shown above
202-20-B2
strong magnet 202-20-C

DESCRIPTION
Show that grape is repelled by either pole of a strong magnet.  Water is diamagnetic, the grape is repelled because of its water content.

REFERENCES

http://www.exploratorium.edu/snacks/diamagnetism_www/index.html

AJP 28(7),678.