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On rubbing a glass rod with a silk cloth why is it that the glass rod will acquire positive charge whereas the silk cloth gets negative charge and not the other way round ,why can't the glass rod get negatively charged and the silk cloth positively charged ?

Answer» On rubbing a glass rod with a silk cloth why is it that the glass rod will acquire positive charge whereas the silk cloth gets negative charge and not the other way round ,why can't the glass rod get negatively charged and the silk cloth positively charged ?



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