When a plastic rod rubbed with wool is brought near the knob of negatively charged gold leaf electroscope, the gold leaves choose one: contract dilate start oscillating collapse completely?
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The answer is dilate.
Reason :
The rod repels negative charge from the top of the electroscope.
This creates an excess of negative charge at the leaves.
The leaves having the same charge, are repelled, and spread.
Hence the leaf dilates.
Reason :
The rod repels negative charge from the top of the electroscope.
This creates an excess of negative charge at the leaves.
The leaves having the same charge, are repelled, and spread.
Hence the leaf dilates.
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