About how many electrons together carry a charge of one coulomb?
A9 x 10^9
B6.02 x 10^23
C6.25 x 10^18
D1.6 x 10^19
Answer & Solution
Correct answer: C. 6.25 x 10^18
N = 1 C / 1.6 x 10^-19 C = 6.25 x 10^18 electrons.
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