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Get Real! — Physically Reasonable Values for Teaching Electrostatics
3.Martin A. Uman, Lightning (Dover, New York, 1984), p. 204.
4.Halliday, Resnick, and Walker, Fundamentals of Physics, 5th ed. (John Wiley & Sons, New York, 1997), p. 350.
6.Handbook of Chemistry and Physics, 42nd ed., edited by Charles D. Hodgman (Chemical Rubber Publishing Co., Cleveland, OH, 1960), p. 2128.
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Students get a sense of realistic values for physical situations from texts, but more importantly from solving problems. Therefore, problems should use realistic values for quantities to provide needed practice. Unfortunately, some problems on tests and in textbooks do not use realistic values. Physical situations in electrostatics seem to be particularly problematic.
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