If a neutral material gains electrons, it will be negatively charged.
If it is losing electrons, it is positively charged.
The glass rod has free electrons.
When the glass rod is rubbed with another material, then there will be an exchange of electrons.
A glass rod is charged to + 9.0nC by rubbing.
A. Have electrons been removed from the rod or protons added? Explain.
B. How many electrons have been removed or protons added?
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