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how does an pith ball electroscope work?

Asked by Aditi Dutta(student) , on 10/11/11


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EXPERT ANSWER

Hi,
A "pith ball electroscope" is simply a "pith ball" hanging from a string. It is used to test whether an object is charged or not. If you bring a non-charged object near a non-charged pith ball electroscope, the pith ball will not move. But if the object is charged then the pith ball will move towards the charged object because it is attracted to it.  The attraction prevails until they touch, then they will repel.

 

Posted by Ruhhi Ralhan(MeritNation Expert)on 11/11/11

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