What is the use of a gold leaf electroscope?

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To detect the electric charge

To detect the metal

To detect the non-metal

None of these

answer is A.

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Detailed Solution

This is because a gold leaf electroscope is a device used to detect the presence of electric charge on a body and its relative amount.So, a gold leaf electroscope decreases when opposite charge increase which means that the glass rod has a negative charge. Therefore a gold leaf electroscope can be charged positively by touching a charged glass rod to its cap. Hence, when the glass rod is rubbed with silk then the silk remove all electrons from the glass rod and leaves a positive charge.

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