Gold Leaf Electroscope

A Gold Leaf Electroscope is an instrument which detects the electrical charge present in an object.

Electroscope is very simple to construct. It has 3 main parts

  • A thin gold sheet bend at an angle
  • An aluminium rod and a container
  • A top metallic ball for receiving charge


Working and concept:


Like charges repel each other and opposite charges attract. This is the working principle behind the GLE. When a gold leaf suspended in an electroscope experiences charge on its two opposite leaves, it creates a force of separation. If a charge is induced it will repel the leaves away from each other. Greater the magnitude of charge, the greater will be separation between the leaves.

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