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Question

If a glass rod is rubbed with silk, it acquires a positive charge because :

A
Electrons are added to it
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B
Protons are removed from it
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C
Protons are added to it
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D
Electrons are removed from it
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Solution

The correct option is D Electrons are removed from it
Glass rod acquires positive charge, due to loss of electrons during rubbing.

The electrons lost by glass rod gets transferred to the silk, thus making it negatively charged.

Why this question ?Caution: Electrons are the mobile charges, which get transferred during interaction. Thus it may be very clear that protons are not getting added.

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