Electric Charges and Electric Forces
By imagining a gas to be a collection of tiny spheres, physicists and chemists were able to explain many features of the behavior of gases and estimate the number and size of molecules. Their results gave further credibility to the idea that atoms exist, but their numbers were imprecise, yielding estimates of Avogadro’s number and atomic sizes accurate only to within an order of magnitude, i.e., only to within a factor of ten.
KeywordsNegative Charge Positive Charge Electric Current Electric Charge Electric Force
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