Electroscope is a device to detect the pretense of charge on a body. It also give an
indication of the amount of static charge on the body.
Leaf electroscope is a simple equipment to detect the static charge presence. it has
a metal bob/metal rod to collect the charge. The other end of the rod carries two
thin aluminum foil, laid hanging from a single end.
When a charged balloon (charged by friction on hair) is brought near to the metal rod
,by induction opposite charges are induced on the rod and same changes are replied
to the other end of the rod (that is, the aluminum foils. Two foils get similar charges are repelled mechanically, showing out a visual separation.
- Suggested for students view
Demonstration of static electricity generated when a plastic bag is rubbed on hair / woolen clothing. Aluminum foil get seperated
Video time: 0:52 Min
Materials used: Jam jar, screw, paper clip, household cooking foil.
The electroscope worked better after the jar was dried in a warm oven. this will avoid leaking out of static charge
More video from http://www.youtube.com/user/uGordy7
- Suggested for students view
A PVC tube is charged by friction with a soft cloth, the aluminum foil electroscope is used to detect the static electricity charge.
Video time: 0:16 min
More from http://www.youtube.com/user/zakasilva
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