A Gold Leaf Electroscope is a fascinating device used to detect and measure electric charges. Let’s delve into its details:
Definition:
A gold-leaf electroscope consists of two delicate gold leaves and serves the purpose of detecting the electrical charge on a body and classifying its polarity.
There are two main types of electroscopes: the gold-leaf electroscope and the pith ball electroscope.
The gold-leaf electroscope, invented by Abraham Bennet in 1787, is considered more sensitive than the pith ball electroscope.
Construction:
The gold-leaf electroscope is constructed as follows:
A brass rod with a brass disk at the top.
Two thin gold leaves (in the form of foils) attached to the bottom of the rod.
The rod passes through an insulator to keep it in place.
A thin aluminum foil is connected at the lower portion of the jar and grounded via a copper wire. This protects the leaves from external electrical disturbances.
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