Identifying Charges Using a Pith-ball Electroscope?

AI Thread Summary
A pith-ball electroscope can be used to determine the charge of an unknown object by observing the behavior of the pith balls. The principle relies on the fact that like charges repel and opposite charges attract, allowing for identification based on movement. The force experienced by the pith balls is proportional to the size of the charge, providing a method for analysis. Historical experiments and online demonstrations further illustrate this process. Understanding these concepts enables effective use of the electroscope in charge identification.
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Question:
Can you use a pith-ball electroscope, to determine the charge of an unknown object?

Is it possible?
 
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Welcome to PF.
Can you use a pith-ball electroscope, to determine the charge of an unknown object?
Yes. It is possible. xD
http://www.execulink.com/~ekimmel/central/pithlab.htm
 
Simon Bridge said:
Welcome to PF.
Yes. It is possible. xD
http://www.execulink.com/~ekimmel/central/pithlab.htm

How would this be done?
 
The link has a guide for experiments ... you do it by using your knowledge of electric charges.

You know that like charges repel and opposites attract.
You know the force is proportional to the size of the charge.
You know which sort of static electricity is positive and which negative.
So what's the problem?

This is, historically, how electricity was investigated.
Also - there are demos on youtube - honestly, anyone would think you weren't sitting in front of a computer :)
 
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