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When a negative charged rod is brought n...

When a negative charged rod is brought near, but does not touch, the initially unchanged electroscope shown below, the leaves spring apart `(I)`. When the electroscope is then touched with a finger, the leaves collapse `(II)`. When next the finger and finally the rod are removed, the leaves spring apart a second time `(III)`. The charge on the leaves is

A

positive in both `I` and `III`

B

negative in both `I` and `III`

C

positive in `I`, negative in `III`

D

negative in `I`, positive in `III`

Text Solution

Verified by Experts

The correct Answer is:
D
Due to induced effect.
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