15. A metallic object holds a charge of -4.8 × 10^-6 C. What total number of electrons does this represent? (e = 1.6 × 10^-19 C is the magnitude of the electronic charge.) a. 3.0E+13 b. 7.8E+13
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8×10^-6 C)/(1.6×10^-19 C) = 3.0×10^13. Show more…
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