2.5 g copper penny is given a charge of -2.6 nC. a) How many electrons were transferred in order to create the charge on the penny?  b) By what percentage do the transferred electrons change the mass of the penny? (Express your result as a positive percentage for an increase, negative for a decrease

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.