Engineering Board Exam Reviewer · Quantities and Units · easy

Approximately how many electrons make up one coulomb of charge?

  1. 6.24×1019
  2. 1.6×10-19
  3. 6.24×1018
  4. 6.02×1023

Answer

C. 6.24×1018

Solution

One electron carries 1.6×10-19 C, so 1 C contains 11.6×10-19 6.24×1018 electrons.

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