- Mylar Balloon
demonstrations are provided only for illustrative use by persons
affiliated with The
and only under the direction of a trained instructor or physicist.
is not responsible for demonstrations performed by those using their
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own purpose. The demonstrations included here are within the
public domain and can be found in materials contained in libraries,
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revisions not depicted here entails inherent risks. These
risks include, without limitation, bodily injury (and possibly
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demonstrations, even with revisions, knowingly and voluntarily
assumes all risks associated with them.
of Study :
balloons, thread or string,
Plexiglas or PVC rods, cats fur, silk.
a Mylar balloon from a rod and touch a charged rod to it.
Keeping the rod in contact with the balloon, touch the back side of
the balloon with your finger. Remove your finger from the
balloon and THEN remove the rod contact. The Mylar balloon
will now have a charge that is opposite of the charge on the
rod. In essence, the Mylar balloon is just a large metal
coated pith ball.
The Electrophorus or a regular balloon may be substituted for the
rod in times of high humidity or when larger amounts of charge are
desired to be transferred to the Mylar balloon.
Borislaw Bilash II, David Maiullo, "Charge It Up", A Demo a Day:
A Year of Physics Demonstrations, p. 240.
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