Question

When the brass disc is touched with object A, the aluminum strips repel each other. What is the nature of object A?

Answer 1

Answer:

When the disc is touched with a charged object, the charge distributes on both the strips of the electroscope. As both strips get similar charges, so they repel and it creates a divergence between the two strips.

Explanation:

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Answer 2

Answer:

When the disc is touched with a charged object, the charge distributes on both the strips of the electroscope. As both strips get similar charges, so they repel and it creates a divergence between the two strips.