When a glass rod is rubbed with silk cloth, it acquires charge because :

Electrons are added to it

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Electrons are removed from it

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Protons are added to it

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Protons are removed from it

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Solution

The correct option is B Electrons are removed from it
When you are rubbing the glass rod with the silk cloth, electrons are stripped away from the atoms in the glass and transferred to the silk cloth. This leaves the glass rod with more positive than negative charge, so you get a net positive charge.

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