The electric plume has a number of colored ribbons
attached to a vacuum cup.
When mounted on the dome of a Van de Graaff generator, the
ribbons will slowly acquire a charge, even though they are normally thought of as
insulators or non-conductors.
As the charge builds, the ribbons will stand away from
the dome and from each other. This is a vivid demonstration showing that like
charges repel one another.
Diameter of the vacuum cup is 6 cm.
Recommended for use with our 25470 Adjustable Speed Van
de Graaff Generator.