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A gold leaf electroscope is given a positive charge so that its leaves diverge. How is the divergence of leaves affected, when a positively charged rod is brought near its disc?

1. Divergence increases
2. Divergence decreases
3. Divergence remains same
4. can't say

Correct answer: Divergence decreases

Solution

When a positively charged rod is brought near the disc, it attracts electrons upward toward the disc. This leaves the leaves with less positive charge, so their mutual repulsion decreases and the divergence reduces.

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