Question
Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) How many electrons are needed to form a charge of −2.00 nC-2.00 \textrm{ nC} (b) How many electrons must be removed from a neutral object to leave a net charge of 0.500 μC0.500 \textrm{ }\mu\textrm{C}?
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Final Answer
  1. 1.25×1010 electrons1.25 \times 10^{10} \textrm{ electrons}
  2. 3.13×1012 electrons3.13 \times 10^{12} \textrm{ electrons}

Solution video

OpenStax College Physics, Chapter 18, Problem 1 (Problems & Exercises)

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In b, why does .500 become negative when converting to C?