Gold Leaf Electroscope and its works

 

An electroscope is a device that can be used for detection of charge.

 

Construction:

 

It consists of a glass case that contains two turn leaves of gold (Au) which are capable to diverge, the leaves are connected to a conductor to a metal ball or disk outside the case, but are insulated from the case itself.

 

3 Working:

 

If a charged object is brought close to the ball, a separation of charge is induced between the ball and gold leaves. The two leaves become charged and repel each other. If the ball is charged by touching the charged object the whole assembly of ball and leaves acquires the same charge. In either case greater the amount of charge greater would be the diverging in lens.

 

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