Question

3. How will you find out the nature of charge on a body using a gold leaf electroscope ?
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Answer 1

Explanation:

The nature of charge can be detected using a gold leaf electroscope as follows: By touching the body to the brass disc: Let the electroscope be charged with positive charge. The leaves will be in diverged position.

Answer 2

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• Charge negatively the gold leaf electroscope by conduction i.e. To detect the kind of charge by a positively charged gold leaf electroscope touching the disc of GL.E. with – vely charged ebonite rod. The leaves diverge (because of repulsion) Note the divergence as show in figure (A).
• Bring a charged body to be tested in contact with disc. If divergence in leaves increase, it has similar charge i.e. negative as shown in figure (B)
• If divergence decrease, the body has opposite charge i.e. positive charge as shown in figure (C).