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Physics 10 Online
OpenStudy (anonymous):

Stuck, please help! A piece of metal has a charge of +2,5 nC. How many electrones would you have to add to neutralise the charge? I figured since one electron has a charge of 1,602*10^-19 C, the answer should be (1,602*10^-19) / (2,5*10^19) = 6,4*10^-11 However, the correct answer is 1,6*10^10

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